MDL-35973 lib: added a page title to redirect() and added 2 seconds to the page redirection when posting in a forum

lib/weblib.php

@@ -2550,6 +2550,7 @@ function redirect($url, $message='', $delay=-1) {
     if ($PAGE) {
         $PAGE->set_context(null);
         $PAGE->set_pagelayout('redirect');  // No header and footer needed.
+        $PAGE->set_title(get_string('pageshouldredirect', 'moodle'));
     }
 
     if ($url instanceof moodle_url) {

mod/forum/post.php

@@ -790,7 +790,7 @@ if ($fromform = $mform_post->get_data()) {
             }
 
             if ($subscribemessage = forum_post_subscription($discussion, $forum)) {
-                $timemessage = 4;
+                $timemessage = 6;
             }
 
             // Update completion status