Continue upgrading Twig

inc/lib/Twig/Extensions/Extension/I18n.php

@@ -28,7 +28,7 @@ class Twig_Extensions_Extension_I18n extends Twig_Extension
     public function getFilters()
     {
         return array(
-            'trans' => new Twig_Filter_Function('gettext'),
+           new Twig_SimpleFilter('trans', 'gettext'),
         );
     }