[PATCH] test-skeleton: add usage information

[Mike Frysinger]

On 04 Aug 2015 10:32, Carlos O'Donell wrote:
> On 08/04/2015 07:28 AM, Mike Frysinger wrote:
> > I keep trying to run tests with --help and then remembering that does
> > nothing when it throws an error.  That means I have to dig into the
> > source when I want to refer to flags or env vars and re-read a good
> > amount of code to find the nested locations.
> > 
> > Make this all much more user friendly with a usage screen that gets
> > printed out whenever an unknown option is specified.
> > 
> > 2015-08-04  Mike Frysinger  <vapier@gentoo.org>
> > 
> > 	* test-skeleton.c (usage): New function.
> > 	(main): Call usage when opt is '?'.
> 
> LGTM for 2.23.

pushed, thanks
-mike
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