added missing lang-string for mail_user_filter_edit

cfoe

2012-05-24 0ce0fdbef0940e4408abc8a717d8321dae0e191c

 interface/web/admin/language_add.php

@@ -35,6 +35,7 @@

//* This is only allowed for administrators
if(!$app->auth->is_admin()) die('only allowed for administrators.');
if($conf['demo_mode'] == true) $app->error('This function is disabled in demo mode.');

$app->uses('tpl');