issue with WMI disk serials

If a Volume serial number begin with zero, the snmp polling seems to drop the leading zero, so the WMI polling will never find the volume, as it has a 'incorrect' storage_descr.

Just got wmi storage poller to drop the leading zero, seemed easiest..

Index: includes/polling/storage/wmi.inc.php
===================================================================
— includes/polling/storage/wmi.inc.php (revision 7470)
+++ includes/polling/storage/wmi.inc.php (working copy)
@@ -18,7 +18,7 @@
{
echo(".");

• $storage_name = $disk['DeviceID'] . "\\\\ Label:" . $disk['VolumeName'] . " Serial Number " . strtolower($disk['VolumeSerialNumber']);
  + $storage_name = $disk['DeviceID'] . "\\\\ Label:" . $disk['VolumeName'] . " Serial Number " . ltrim(strtolower($disk['VolumeSerialNumber']),'0');
  $storage_id = dbFetchCell("SELECT `storage_id` FROM `storage` WHERE `storage_descr`= ?", array($storage_name));
  $rrd_filename = "storage-host-resources-mib-" . $storage_name .".rrd";
  $used = $disk['Size'] - $disk['FreeSpace'];