Issue #1739154 by lund.mikkel: Fixed Bad translation of All causes double translation.

lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php

@@ -189,7 +189,7 @@ abstract class ArgumentPluginBase extends Handler {
       'contains' => array(
         'value' => array('default' => 'all'),
         'title_enable' => array('default' => FALSE, 'bool' => TRUE),
-        'title' => array('default' => t('All'), 'translatable' => TRUE),
+        'title' => array('default' => 'All', 'translatable' => TRUE),
       ),
     );
     $options['title_enable'] = array('default' => FALSE, 'bool' => TRUE);