=== modified file modules/comment/forum.module
--- modules/forum/forum.module	2010-09-05 07:51:38.000000000 +0530
+++ modules/forum/forum.module	2010-09-07 21:41:35.000000000 +0530
@@ -41,7 +41,7 @@ function forum_help($path, $arg) {
       return $output;
     case 'admin/structure/forum':
       $output = '<p>' . t('Forums contain forum topics. Use containers to group related forums.') . '</p>';
-      $output .= theme('more_help_link', array('url' => url('admin/help/forum')));
+      $output .= theme('more_help_link', array('url' => 'admin/help/forum'));
       return $output;
     case 'admin/structure/forum/add/container':
       return '<p>' . t('Use containers to group related forums.') . '</p>';