forum MDL-23388 altered help string to provide information on the rol…

…e of caps in forum throttling

mod/forum/lang/en/forum.php

@@ -61,9 +61,9 @@
 $string['attachmentnopost'] = 'You cannot export attachments without a post id';
 $string['attachments'] = 'Attachments';
 $string['blockafter'] = 'Post threshold for blocking';
-$string['blockafter_help'] = 'This setting specifies the maximum number of posts which a student can post in the given time period.';
+$string['blockafter_help'] = 'This setting specifies the maximum number of posts which a student can post in the given time period. Only applies to users with the capability mod/forum:throttlingapplies.';
 $string['blockperiod'] = 'Time period for blocking';
-$string['blockperiod_help'] = 'Students can be blocked from posting more than a given number of posts in a given time period. To enable this feature, select a time period in which students cannot post more than a given number of posts.';
+$string['blockperiod_help'] = 'Students can be blocked from posting more than a given number of posts in a given time period. Only applies to users with the capability mod/forum:throttlingapplies.';
 $string['blockperioddisabled'] = 'Don\'t block';
 $string['blogforum'] = 'Standard forum displayed in a blog-like format';
 $string['bynameondate'] = 'by {$a->name} - {$a->date}';
@@ -433,7 +433,7 @@
 $string['usermarksread'] = 'Manual message read marking';
 $string['viewalldiscussions'] = 'View all discussions';
 $string['warnafter'] = 'Post threshold for warning';
-$string['warnafter_help'] = 'Students can be warned as they approach the maximum number of posts allowed in a given period. This setting specifies after how many posts they are warned.';
+$string['warnafter_help'] = 'Students can be warned as they approach the maximum number of posts allowed in a given period. This setting specifies after how many posts they are warned. Only applies to users with the capability mod/forum:throttlingapplies.';
 $string['youratedthis'] = 'You rated this';
 $string['yournewquestion'] = 'Your new question';
 $string['yournewtopic'] = 'Your new discussion topic';