MDL-68753 lang: Remove a redundant okay string and use "OK" everywhere

The "Ok" (with lower-case "k") string was added in MDL-68409 to keep
backwards compatibility with YUI alerts that had it hard-coded. But we
should not need to explain to translators why we have two OK strings
like this and why they use different wording.

Additionally, there would be inconsistency in Behat tests and everywhere
depending on which "OK" or "Ok" string is used for buttons.

So instead, this patch changes the hard-coded 'Ok' string in the YUI and
we should stick to "OK" from now on everywhere.

availability/condition/grade/tests/behat/availability_grade.feature

@@ -116,7 +116,7 @@ Feature: availability_grade
     And I click on "Grade" "link" in the "s@example.com" "table_row"
     And I set the field "Grade out of 100" to "40"
     And I click on "Save changes" "button"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
 
     # Log back in as student.

completion/tests/behat/restrict_activity_by_grade.feature

@@ -58,7 +58,7 @@ Feature: Restrict activity availability through grade conditions
     And I set the following fields to these values:
       | Grade | 21 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Edit settings"
     And I log out
     And I log in as "student1"

completion/tests/behat/restrict_section_availability.feature

@@ -91,7 +91,7 @@ Feature: Restrict sections availability through completion or grade conditions
     And I set the following fields to these values:
       | Grade | 21 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Edit settings"
     And I log out
     And I log in as "student1"

grade/grading/form/guide/tests/behat/edit_guide.feature

@@ -83,7 +83,7 @@ Feature: Marking guides can be created and edited
     And I wait "1" seconds
     Then the field "Guide criterion B criterion remark" matches value "Comment \"4\""
     When I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Edit settings"
     And I follow "Test assignment 1 name"
     And I navigate to "View all submissions" in current page administration

grade/grading/tests/behat/behat_grading.php

@@ -156,7 +156,7 @@ class behat_grading extends behat_base {
     public function i_save_the_advanced_grading_form() {
 
         $this->execute('behat_forms::press_button', get_string('savechanges'));
-        $this->execute('behat_forms::press_button', 'Ok');
+        $this->execute('behat_forms::press_button', 'OK');
         $this->execute('behat_general::i_click_on', array($this->escape(get_string('editsettings')), 'link'));
         $this->execute('behat_forms::press_button', get_string('cancel'));
         $this->execute('behat_navigation::i_navigate_to_in_current_page_administration',

grade/report/singleview/tests/behat/bulk_insert_grades.feature

@@ -38,7 +38,7 @@ Feature: We can bulk insert grades for students in a course
     And I set the following fields to these values:
       | Grade out of 100 | 50 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I am on "Course 1" course homepage
     And I navigate to "View > Grader report" in the course gradebook
     And I follow "Single view for Test assignment one"
@@ -79,7 +79,7 @@ Feature: We can bulk insert grades for students in a course
     And I set the following fields to these values:
       | Grade out of 100 | 50 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I am on "Course 1" course homepage
     And I navigate to "View > Grader report" in the course gradebook
     # And I click on "input[title='Dock Navigation block']" "css_element"

grade/tests/behat/grade_scales.feature

@@ -55,23 +55,23 @@ Feature: View gradebook when scales are used
     And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade" to "A"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "[data-action=next-user]" "css_element"
     And I set the field "Grade" to "B"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "[data-action=next-user]" "css_element"
     And I set the field "Grade" to "C"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "[data-action=next-user]" "css_element"
     And I set the field "Grade" to "D"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "[data-action=next-user]" "css_element"
     And I set the field "Grade" to "F"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I am on "Course 1" course homepage
     And I navigate to "Setup > Course grade settings" in the course gradebook
     And I set the field "Show weightings" to "Show"

grade/tests/behat/grade_single_item_scales.feature

@@ -51,7 +51,7 @@ Feature: View gradebook when single item scales are used
     And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade" to "A"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I am on "Course 1" course homepage
     And I navigate to "Setup > Course grade settings" in the course gradebook
     And I set the field "Show weightings" to "Show"

lang/en/moodle.php

@@ -1500,7 +1500,6 @@ $string['numwords'] = '{$a} words';
 $string['numyear'] = '{$a} year';
 $string['numyears'] = '{$a} years';
 $string['ok'] = 'OK';
-$string['okay'] = 'Ok';
 $string['oldpassword'] = 'Current password';
 $string['olduserdirectory'] = 'This is the OLD users directory, and is no longer needed. You may safely delete it. The files it contains have been copied to the NEW user directory.';
 $string['optional'] = 'optional';

lib/form/tests/behat/modgrade_validation.feature

@@ -144,7 +144,7 @@ Feature: Using the activity grade form element
     And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade" to "C"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Edit settings"
     When I expand all fieldsets
     Then I should see "Some grades have already been awarded, so the grade type and scale cannot be changed"
@@ -203,7 +203,7 @@ Feature: Using the activity grade form element
     And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "50"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Edit settings"
     When I expand all fieldsets
     Then I should see "Some grades have already been awarded, so the grade type cannot be changed. If you wish to change the maximum grade, you must first choose whether or not to rescale existing grades."

lib/templates/local/modal/alert.mustache

@@ -40,6 +40,6 @@
 
 {{< core/modal }}
     {{$footer}}
-        <button type="button" class="btn btn-primary" data-action="cancel">{{#str}}okay, moodle{{/str}}</button>
+        <button type="button" class="btn btn-primary" data-action="cancel">{{#str}}ok, moodle{{/str}}</button>
     {{/footer}}
 {{/ core/modal }}

lib/yui/build/moodle-core-notification-alert/moodle-core-notification-alert-debug.js

@@ -127,17 +127,17 @@ Y.extend(ALERT, M.core.notification.info, {
          *
          * @attribute yesLabel
          * @type String
-         * @default 'Ok'
+         * @default 'OK'
          */
         yesLabel: {
             validator: Y.Lang.isString,
             setter: function(txt) {
                 if (!txt) {
-                    txt = 'Ok';
+                    txt = 'OK';
                 }
                 return txt;
             },
-            value: 'Ok'
+            value: 'OK'
         }
     }
 });

lib/yui/build/moodle-core-notification-alert/moodle-core-notification-alert-min.js

@@ -1 +1 @@
-YUI.add("moodle-core-notification-alert",function(o,t){var e,i;M.core=M.core||{},e="Moodle alert",i=function(t){t.closeButton=!1,i.superclass.constructor.apply(this,[t])},o.extend(i,M.core.notification.info,{_closeEvents:null,initializer:function(){var t,e,i;this._closeEvents=[],this.publish("complete"),t=o.Node.create('<input type="button" class="btn btn-primary" id="id_yuialertconfirm-'+this.get("COUNT")+'"value="'+this.get("yesLabel")+'" />'),e=o.Node.create('<div class="confirmation-dialogue"></div>').append(o.Node.create('<div class="confirmation-message">'+this.get("message")+"</div>")).append(o.Node.create('<div class="confirmation-buttons text-xs-right"></div>').append(t)),this.get("notificationBase").addClass("moodle-dialogue-confirm"),this.setStdModContent(o.WidgetStdMod.BODY,e,o.WidgetStdMod.REPLACE),this.setStdModContent(o.WidgetStdMod.HEADER,'<h1 id="moodle-dialogue-'+this.get("COUNT")+'-header-text">'+this.get("title")+"</h1>",o.WidgetStdMod.REPLACE),this._closeEvents.push(o.on("key",this.submit,window,"down:13",this),t.on("click",this.submit,this)),(i=this.get("boundingBox").one(".closebutton"))&&this._closeEvents.push(i.on("click",this.submit,this))},submit:function(){new o.EventHandle(this._closeEvents).detach(),this.fire("complete"),this.hide(),this.destroy()}},{NAME:e,CSS_PREFIX:"moodle-dialogue",ATTRS:{title:{validator:o.Lang.isString,value:"Alert"},message:{validator:o.Lang.isString,value:"Confirm"},yesLabel:{validator:o.Lang.isString,setter:function(t){return t=t||"Ok"},value:"Ok"}}}),M.core.alert=i},"@VERSION@",{requires:["moodle-core-notification-dialogue"]});
+YUI.add("moodle-core-notification-alert",function(o,t){var e,i;M.core=M.core||{},e="Moodle alert",i=function(t){t.closeButton=!1,i.superclass.constructor.apply(this,[t])},o.extend(i,M.core.notification.info,{_closeEvents:null,initializer:function(){var t,e,i;this._closeEvents=[],this.publish("complete"),t=o.Node.create('<input type="button" class="btn btn-primary" id="id_yuialertconfirm-'+this.get("COUNT")+'"value="'+this.get("yesLabel")+'" />'),e=o.Node.create('<div class="confirmation-dialogue"></div>').append(o.Node.create('<div class="confirmation-message">'+this.get("message")+"</div>")).append(o.Node.create('<div class="confirmation-buttons text-xs-right"></div>').append(t)),this.get("notificationBase").addClass("moodle-dialogue-confirm"),this.setStdModContent(o.WidgetStdMod.BODY,e,o.WidgetStdMod.REPLACE),this.setStdModContent(o.WidgetStdMod.HEADER,'<h1 id="moodle-dialogue-'+this.get("COUNT")+'-header-text">'+this.get("title")+"</h1>",o.WidgetStdMod.REPLACE),this._closeEvents.push(o.on("key",this.submit,window,"down:13",this),t.on("click",this.submit,this)),(i=this.get("boundingBox").one(".closebutton"))&&this._closeEvents.push(i.on("click",this.submit,this))},submit:function(){new o.EventHandle(this._closeEvents).detach(),this.fire("complete"),this.hide(),this.destroy()}},{NAME:e,CSS_PREFIX:"moodle-dialogue",ATTRS:{title:{validator:o.Lang.isString,value:"Alert"},message:{validator:o.Lang.isString,value:"Confirm"},yesLabel:{validator:o.Lang.isString,setter:function(t){return t=t||"OK"},value:"OK"}}}),M.core.alert=i},"@VERSION@",{requires:["moodle-core-notification-dialogue"]});

lib/yui/build/moodle-core-notification-alert/moodle-core-notification-alert.js

@@ -127,17 +127,17 @@ Y.extend(ALERT, M.core.notification.info, {
          *
          * @attribute yesLabel
          * @type String
-         * @default 'Ok'
+         * @default 'OK'
          */
         yesLabel: {
             validator: Y.Lang.isString,
             setter: function(txt) {
                 if (!txt) {
-                    txt = 'Ok';
+                    txt = 'OK';
                 }
                 return txt;
             },
-            value: 'Ok'
+            value: 'OK'
         }
     }
 });

lib/yui/src/notification/js/alert.js

@@ -97,17 +97,17 @@ Y.extend(ALERT, M.core.notification.info, {
          *
          * @attribute yesLabel
          * @type String
-         * @default 'Ok'
+         * @default 'OK'
          */
         yesLabel: {
             validator: Y.Lang.isString,
             setter: function(txt) {
                 if (!txt) {
-                    txt = 'Ok';
+                    txt = 'OK';
                 }
                 return txt;
             },
-            value: 'Ok'
+            value: 'OK'
         }
     }
 });

mod/assign/feedback/editpdf/tests/behat/annotate_pdf.feature

@@ -133,7 +133,7 @@ Feature: In an assignment, teacher can annotate PDF files during grading
     And I draw on the pdf
     And I press "Save changes"
     And I should see "The changes to the grade and feedback were saved"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/feedback/editpdf/tests/behat/group_annotations.feature

@@ -62,7 +62,7 @@ Feature: In a group assignment, teacher can annotate PDF files for all users
     Given I set the field "applytoall" to "0"
     And I press "Save changes"
     And I should see "The changes to the grade and feedback were saved"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I log out
     And I log in as "student1"
@@ -81,7 +81,7 @@ Feature: In a group assignment, teacher can annotate PDF files for all users
   @javascript
   Scenario: Submit a PDF file as a student and annotate the PDF as a teacher and all students in the group get a copy of the annotated PDF.
     Given I press "Save changes"
-    And I click on "Ok" "button"
+    And I click on "OK" "button"
     And I am on "Course 1" course homepage
     And I log out
     And I log in as "student1"

mod/assign/feedback/editpdf/tests/behat/view_previous_annotations.feature

@@ -54,7 +54,7 @@ Feature: In an assignment, teacher can view the feedback for a previous attempt.
     And I press "Save changes"
     And I wait until the page is ready
     And I should see "The changes to the grade and feedback were saved"
-    And I press "Ok"
+    And I press "OK"
     And I follow "View a different attempt"
     And I click on "Attempt 1" "radio" in the "View a different attempt" "dialogue"
     And I press "View"

mod/assign/feedback/file/tests/behat/feedback_file.feature

@@ -58,7 +58,7 @@ Feature: In an assignment, teacher can submit feedback files during grading
   Scenario: A teacher can provide a feedback file when grading an assignment.
     Given I set the field "applytoall" to "0"
     And I press "Save changes"
-    And I click on "Ok" "button"
+    And I click on "OK" "button"
     And I click on "Course 1" "link" in the "[data-region=assignment-info]" "css_element"
     And I log out
     And I log in as "student1"
@@ -74,7 +74,7 @@ Feature: In an assignment, teacher can submit feedback files during grading
   @javascript
   Scenario: A teacher can provide a feedback file when grading an assignment and all students in the group will receive the file.
     Given I press "Save changes"
-    And I click on "Ok" "button"
+    And I click on "OK" "button"
     And I click on "Course 1" "link" in the "[data-region=assignment-info]" "css_element"
     And I log out
     And I log in as "student1"

mod/assign/tests/behat/allow_another_attempt.feature

@@ -43,7 +43,7 @@ Feature: In an assignment, students start a new attempt based on their previous
     And I set the following fields to these values:
       | Allow another attempt | 1 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I log out
     Then I log in as "student1"
@@ -150,7 +150,7 @@ Feature: In an assignment, students start a new attempt based on their previous
     And I set the following fields to these values:
       | Allow another attempt | 1 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Assignment: Test assignment name"
     And I log out
     And I log in as "student4"

mod/assign/tests/behat/comment_inline.feature

@@ -46,7 +46,7 @@ Feature: In an assignment, teachers can edit a students submission inline
       | Feedback comments | I'm the teacher feedback |
     And I upload "lib/tests/fixtures/empty.txt" file to "Feedback files" filemanager
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/display_grade.feature

@@ -32,7 +32,7 @@ Feature: Check that the assignment grade can be updated correctly
     And I set the field "Grade out of 100" to "50"
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -68,7 +68,7 @@ Feature: Check that the assignment grade can be updated correctly
     And I set the field "Grade out of 100" to "50"
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/edit_previous_feedback.feature

@@ -46,7 +46,7 @@ Feature: In an assignment, teachers can edit feedback for a students previous su
       | Feedback comments | I'm the teacher first feedback |
       | Allow another attempt | Yes |
     And I press "Save changes"
-    And I click on "Ok" "button"
+    And I click on "OK" "button"
     And I click on "Edit settings" "link"
     And I log out
     And I log in as "student2"
@@ -66,7 +66,7 @@ Feature: In an assignment, teachers can edit feedback for a students previous su
       | Grade | 50 |
       | Feedback comments | I'm the teacher second feedback |
     And I press "Save changes"
-    And I click on "Ok" "button"
+    And I click on "OK" "button"
     And I click on "Edit settings" "link"
     And I log out
     Then I log in as "student2"

mod/assign/tests/behat/filter_by_marker.feature

@@ -36,7 +36,7 @@ Feature: In an assignment, teachers can filter displayed submissions by assigned
     And I set the field "allocatedmarker" to "Marker 1"
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I log out
     When I log in as "teacher1"

mod/assign/tests/behat/grading_status.feature

@@ -57,7 +57,7 @@ Feature: View the grading status of an assignment
     And I set the field "Feedback comments" to "Great job! Lol, not really."
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -80,7 +80,7 @@ Feature: View the grading status of an assignment
     And I should see "1 of 1"
     And I set the field "Marking workflow state" to "Released"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -104,7 +104,7 @@ Feature: View the grading status of an assignment
     And I set the field "Marking workflow state" to "In marking"
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -154,7 +154,7 @@ Feature: View the grading status of an assignment
     And I set the field "Grade out of 100" to "50"
     And I set the field "Feedback comments" to "Great job! Lol, not really."
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -188,7 +188,7 @@ Feature: View the grading status of an assignment
     And I set the field "Grade out of 100" to "99.99"
     And I set the field "Feedback comments" to "Even better job! Really."
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/group_submission.feature

@@ -189,11 +189,11 @@ Feature: Group assignment submissions
       | Grade out of 100 | 50.0 |
       | Apply grades and feedback to entire group | 1 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I set the following fields to these values:
       | Allow another attempt | 1 |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     When I am on "Course 1" course homepage
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/hide_grader.feature

@@ -46,7 +46,7 @@ Feature: Hide grader identities identity from students
     And I set the field "Grade out of 100" to "50"
     And I set the field "Feedback comments" to "Catch for us the foxes."
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
     And I should see "Graded" in the "Student 1" "table_row"

mod/assign/tests/behat/outcome_grading.feature

@@ -65,7 +65,7 @@ Feature: Outcome grading
     And I set the following fields to these values:
       | Outcome Test: | Excellent |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -113,7 +113,7 @@ Feature: Outcome grading
       | Outcome Test: | Excellent |
       | Apply grades and feedback to entire group | Yes |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -125,7 +125,7 @@ Feature: Outcome grading
       | Outcome Test: | Disappointing |
       | Apply grades and feedback to entire group | No |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/quickgrading.feature

@@ -39,7 +39,7 @@ Feature: In an assignment, teachers grade multiple students on one page
     And I click on "Grade" "link" in the "Student 1" "table_row"
     And I wait until the page is ready
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     Then I should see "1" in the "Needs grading" "table_row"
@@ -113,7 +113,7 @@ Feature: In an assignment, teachers grade multiple students on one page
       | M8d skillZ! | 1337 |
       | Feedback comments | I'm the teacher first feedback |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/rescale_grades.feature

@@ -31,7 +31,7 @@ Feature: Check that the assignment grade can be rescaled when the max grade is c
     And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Grade out of 100" to "40"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I follow "Edit settings"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/steps_blind_marking.feature

@@ -51,7 +51,7 @@ Feature: Assignments correctly add feedback to the grade report when workflow an
     And I set the field "Feedback comments" to "Great job! Lol, not really."
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -63,7 +63,7 @@ Feature: Assignments correctly add feedback to the grade report when workflow an
     And I set the field "Marking workflow state" to "Ready for release"
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -71,7 +71,7 @@ Feature: Assignments correctly add feedback to the grade report when workflow an
     And I click on "Grade" "link" in the "I'm the student's first submission" "table_row"
     And I set the field "Marking workflow state" to "Released"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -91,7 +91,7 @@ Feature: Assignments correctly add feedback to the grade report when workflow an
     And I set the field "Marking workflow state" to "Ready for release"
     And I set the field "Notify students" to "0"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -101,7 +101,7 @@ Feature: Assignments correctly add feedback to the grade report when workflow an
     And I click on "Grade" "link" in the "Student 1" "table_row"
     And I set the field "Marking workflow state" to "Released"
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration

mod/assign/tests/behat/submission_comments.feature

@@ -58,7 +58,7 @@ Feature: In an assignment, students can comment in their submissions
       | Grade out of 100 | 50 |
       | Feedback comments | I'm the teacher feedback |
     And I press "Save changes"
-    And I press "Ok"
+    And I press "OK"
     And I click on "Edit settings" "link"
     And I follow "Test assignment name"
     And I navigate to "View all submissions" in current page administration
@@ -78,7 +78,7 @@ Feature: In an assignment, students can comment in their submissions
       | Grade out of 100 | 0 |
     And I press "Save changes"
     And I should see "The changes to the grade and feedback were saved"
-    And I press "Ok"
+    And I press "OK"
     And I set the following fields to these values:
       | Feedback comments | I'm the teacher feedback |
     And I press "Save changes"