MDL-20636 Fix two HTML validation issues.

question/engine/renderer.php

@@ -218,7 +218,7 @@ class core_question_renderer extends plugin_renderer_base {
                 $flagcontent = '<input type="hidden" name="' . $id . '" value="0" />' .
                         '<input type="checkbox" id="' . $id . 'checkbox" name="' . $id . '" value="1" ' . $checked . ' />' .
                         '<input type="hidden" value="' . s($postdata) . '" class="questionflagpostdata" />' .
-                        '<label id="' . $id . 'label" for="' . $id . '">' . $this->get_flag_html(
+                        '<label id="' . $id . 'label" for="' . $id . 'checkbox">' . $this->get_flag_html(
                         $qa->is_flagged(), $id . 'img') . '</label>' . "\n";
                 break;
             default:

question/type/essay/renderer.php

@@ -214,7 +214,7 @@ class qtype_essay_format_editor_renderer extends plugin_renderer_base {
                 $this->class_name() . ' qtype_essay_response'));
 
         $output .= html_writer::tag('div', html_writer::tag('textarea', s($reponse),
-                array('id' => $id, 'name' => $inputname, 'rows' => $lines)));
+                array('id' => $id, 'name' => $inputname, 'rows' => $lines, 'cols' => 60)));
 
         $output .= html_writer::start_tag('div');
         if (count($formats == 1)) {
@@ -406,6 +406,7 @@ class qtype_essay_format_plain_renderer extends plugin_renderer_base {
     protected function textarea($response, $lines, $attributes) {
         $attributes['class'] = $this->class_name() . ' qtype_essay_response';
         $attributes['rows'] = $lines;
+        $attributes['cols'] = 60;
         return html_writer::tag('textarea', s($response), $attributes);
     }