I've committed the attached.  The only difference from the original is 
that I fixed a problem with LOCALEDIR.  The Makefile and C code ended up 
using different paths.

I've also checked that it works (by hand) using a fake catalogue:

> cagney@nettle$ LANGUAGE=au ./gdb --help
> G'day, this is the GNU debugger.  Usage:
> 
>     gdb [options] [executable-file [core-file or process-id]]
>     gdb [options] --args executable-file [inferior-arguments ...]

We'll need an i18n.exp test but first we'll need a real catalogue :-)

Next tasks are annotate the text, and get ourselves integrated into the 
translation process.

enjoy,
Andrew