Trivial misuse of t() found in system_menu() while debugging t() usage.

modules/system/system.module

@@ -383,7 +383,7 @@ function system_menu() {
     'file' => 'system.admin.inc',
   );
   $items['admin/settings/date-time/lookup'] = array(
-    'title' => t('Date and time lookup'),
+    'title' => 'Date and time lookup',
     'type' => MENU_CALLBACK,
     'page callback' => 'system_date_time_lookup',
     'file' => 'system.admin.inc',