bug#24543: 25.1; describe-symbol doesn't show face with same name as a variable

[Eli Zaretskii]

> From: Alex <agrambot@gmail.com>
> Cc: 24543@debbugs.gnu.org
> Date: Fri, 28 Jul 2017 14:45:24 -0600
> 
> > if so, could it break some of the users of this function out there?
> 
> Potentially, but I don't see that being an issue in this case. The
> return value isn't documented, so users shouldn't be (and likely aren't)
> relying on describe-face always returning nil. It makes more sense to
> treat describe-face like describe-{function, variable}.

OK, I pushed the changes.

Thanks.