- Patch #286378 by TapocoL: fixed undefined index warning.

modules/user/user.admin.inc

@@ -582,7 +582,7 @@ function theme_user_admin_perm($form) {
       $row = array();
       // Module name
       if (is_numeric($key)) {
-        $row[] = array('data' => t('@module module', array('@module' => drupal_render($form['permission'][$key]))), 'class' => 'module', 'id' => 'module-' . $form['permission'][$key]['#value'], 'colspan' => count($form['role_names']) + 1);
+        $row[] = array('data' => t('@module module', array('@module' => drupal_render($form['permission'][$key]))), 'class' => 'module', 'id' => 'module-' . $form['permission'][$key]['#markup'], 'colspan' => count($form['role_names']) + 1);
       }
       else {
         // Permission row.