Add a more descriptive function summary for options_discussion_add_js().

See [31095]. See #31888.


git-svn-id: https://develop.svn.wordpress.org/trunk@32005 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/options-discussion.php

@@ -15,7 +15,7 @@ $title = __('Discussion Settings');
 $parent_file = 'options-general.php';
 
 /**
- * Display JavaScript on the page.
+ * Output JavaScript to toggle display of additional settings if avatars are disabled.
  *
  * @since 4.2.0
  */