Fix PHP warning when defaults.inc.php is not readable

Aleksander Machniak

2016-03-14 0c9e55b0c9719a0817a442f994f26d9ac552c73b

 program/steps/mail/viewsource.inc

@@ -19,6 +19,10 @@
 +-----------------------------------------------------------------------+
*/

if (!empty($_GET['_save'])) {
    $RCMAIL->request_security_check(rcube_utils::INPUT_GET);
}

ob_end_clean();

// similar code as in program/steps/mail/get.inc