patch: -Wall and unused variables

[Benjamin Kosnik]

This in, thanks!

-Benjamin

> 1999-08-10  Michael Cook  <cook@sightpath.com>
> 
> 	* bits/fstream.tcc: Fix for unused variable warning (-Wall).
> 	* bits/ios_base.h: ditto.
> 	* bits/istream.tcc: ditto.
> 	* bits/locale_facets.h: ditto.
> 	* bits/locale_facets.tcc: ditto.
> 	* bits/std_streambuf.h: ditto.
> 	* src/basic_file.cc: ditto.
> 	* src/locale.cc: ditto.
> 	* src/localename.cc: ditto.
>