prevent empty support messages in help module (Fixes: #3697)

Florian Schaal

2016-05-26 52a8e7e2f53b23f41b40aa5bc5b35f338aaec3dd

 interface/lib/classes/json_handler.inc.php

@@ -91,7 +91,7 @@

      if(is_array($_POST)) {
         foreach($_POST as $key => $val) {
            $tmp = json_decode($val);
            $tmp = json_decode($val, true);
            if(!$tmp) $params[] = $val;
            else $params[] = (array)$tmp;
         }