[RFA] New test for the '!' escaping problem

[Andrew Cagney]

> Here is a testcase that compiles args.c into an executable named
> "bang!", and verifies that running this program completes normally.
> This corresponds to the patch that was submitted in the following
> message: http://sources.redhat.com/ml/gdb-patches/2003-05/msg00023.html
> 
> 2003-06-12  J. Brobecker  <brobecker@gnat.com>
> 
>         * gdb.base/bang.exp: New testcase.
> 
> Ok to commit?

Yes.

Andrew