Bug 1826683: Correct lang string for forum post moderation

The description should mention it is forum
moderators that can perform the moderation
as there are no group moderators.

behatnotneeded

Change-Id: I1e847fc2b37f5304028cde241c72d2141040fa51

htdocs/interaction/forum/lang/en.utf8/interaction.forum.php

@@ -248,7 +248,7 @@ $string['closetopicsdescription1'] = 'Close all new topics by default. Only mode
 
 $string['approvalofposts'] = 'Approval of posts';
 $string['moderatenewposts'] = 'Moderate new posts';
-$string['moderatenewpostsdescription'] = 'New posts need to be approved by a group moderator or administrator.';
+$string['moderatenewpostsdescription1'] = 'New posts need to be approved by a forum moderator or administrator.';
 
 $string['activetopicsdescription'] = 'Recently updated topics in your groups.';
 

htdocs/interaction/forum/lib.php

@@ -124,7 +124,7 @@ class PluginInteractionForum extends PluginInteraction {
                                     'posts'    => get_string('posts'),
                                     'replies' => get_string('replies', 'interaction.forum'),
                                     'postsandreplies' => get_string('postsandreplies', 'interaction.forum')),
-            'description'  => get_string('moderatenewpostsdescription', 'interaction.forum'),
+            'description'  => get_string('moderatenewpostsdescription1', 'interaction.forum'),
             'defaultvalue' => empty($moderateposts) ? 'none' : $moderateposts,
         );