[sync] Decode Bug

[Chuck Hagenbuch]

Quoting raytrace <raytrace at 95700.net>:

> sorry for my pool english
> i have wbxml file want to decode but have a trouble
>
> <b>Fatal error</b>:  Call to a member function on a non-object in
> <b>C:\MyServer\CVSROOT\SyncML\Decoder.php</b> on line <b>518</b><br />

There's now some error checking that will prevent the fatal error from
happening.

-chuck

--
Charles Hagenbuch, <chuck at horde.org>
"I'm really... I'm not too fascinated by green food." - Average Joe