obvious(?) typo in libstdc++-v3/src/c++98/locale.cc

[DJ Delorie]

> > The typo is obvious, but whether or not the wrapped code still works
> > isn't (to me).
> > 
> > 	* src/c++98/locale.cc (locale::facet::_S_get_c_locale): Fix
> > typo.
> 
> Please check this in.

Done.  Thanks!