[Fontconfig] fontconfig: FcConfigAppFontAddDir () doesn't work right

[Patrick Lam]

Mike FABIAN wrote:
> See 
> 
> http://bugzilla.novell.com/show_bug.cgi?id=148693

I'm kind of concerned about this patch potentially bringing back the
issues we had a while back with 'fc-cache .' not doing the right thing,
so I can't commit it until I check that issue out.  In particular, if we
don't normalize before we add a directory, it seems like fc-cache .
might do the wrong thing.

pat