tests for --help (was: [PATCH 0/N] Fix --help output.)

[Ralf Wildenhues]

* Ben Elliston wrote on Fri, Mar 06, 2009 at 01:14:45AM CET:
> On Thu, 2009-03-05 at 22:20 +0100, Ralf Wildenhues wrote:
> 
> > Do I need to take into account localization issues here?  If yes, how
> > would I go about it?
> 
> What if you set the relevant locale environment variables in the expect
> script to force the translation you want?  (Which leaves other locales
> untested, admittedly).

Well, it doesn't matter much here to test only the C locale.

The thing I don't understand though is: the only locale settings
I find in the current testsuite are in
  g++.exp gcc-dg.exp gfortran.exp objc.exp

and I cannot see how they can possibly affect the locale on a remote
target; dejagnu itself doesn't seem to have such settings in its .exp
file either.

Other than that, nothing breaks if I add this early in the script:

# We set LC_ALL and LANG to C so that we get the same error messages as
# expected.
setenv LC_ALL C
setenv LANG C

but OTOH I cannot get my uninstalled compiler to output localized
messages anyway, so what would I need to do to have an effective
way to ensure the above works?

Thanks,
Ralf