Re: Git branch outputs usage message on stderr

> Jeff King <peff@peff.net> writes:
> 
> > And it uses code 129, even for "-h". I don't see any explicit rationale
> > for that in the history; I think it goes back to the beginning of
> > parse-options. It happens via the PARSE_OPT_HELP flag, but curiously we
> > also trigger that for ambiguous options (which should exit with error).
> > That might be a bug-in-waiting if we start handling PARSE_OPT_HELP
> > differently.
> 
> There is another class of callers that are protected by the same
> "argc == 2 && !strcmp(argv[1], "-h")" condition, and they call
> usage.c:usage(), instead of calling usage_with_options().  These
> calls (but not all calls to usage()) need to be updated to use a
> similar helper, say, show_usage_and_exit_if_asked().  Sigh...