Fixes for FS#1843 - mail quota usage statistics with courier

tbrehm

2011-11-16 00baa16a9e0905b3e5140349b723544597a017b9

 server/lib/classes/monitor_tools.inc.php

@@ -177,7 +177,7 @@
               unset($quotafile);
            } else {
               exec('du -s '.escapeshellcmd($filename),$out);
               $parts = explode(' ',$out);
               $parts = explode(' ',$out[0]);
               $data[$email]['used'] = intval($parts[0])*1024;
               unset($out);
               unset($parts);