[Fontconfig] Patch: fc-cache crashes on some .ttc fonts

[Patrick Lam]

Mike FABIAN wrote:
> For details see:
> 
> http://bugzilla.novell.com/show_bug.cgi?id=153402
> 
> If the function GetScriptTags () frees *stags, it should set it to
> NULL, otherwise FcFontCapabilities () might try to free the same
> memory again.

Committed.

Any idea how stable current CVS is?  I've noticed a pleasing lack of
complaints in the past week...

pat