Not quoted option names in errors and warnings

[Martin Sebor]

On 11/15/2018 03:12 AM, Martin Liška wrote:
> Hi.
>
> I've done a quick grep of gcc/po/gcc.pot and I see quite a lot of missing quotations
> of option names (~400). Is it something we should fix? How important is that?

That's quite a few... I've been fixing these as I notice them,
usually as part of related changes.  The most onerous part of
the cleanup is adjusting tests, especially under the target-
specific ones.  It's (obviously) not critical but I think it
would be nice to make the quoting consistent throughout over
time (if not in one go) and then put in place a -Wformat
checker to detect the missing quoting as new diagnostics are
introduced.  Do you think it might be scriptable?

Martin