bug#29405: 27.0.50; message-faces: Doc fixes and syntax touch-ups

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: "Basil L. Contovounesios" <contovob@tcd.ie>,  Katsumi Yamaoka 
> <yamaoka@jpl.org>,  29405@debbugs.gnu.org
> Date: Fri, 01 Dec 2017 12:07:02 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Lars, Yamaoka-san -- any comments on these?
> 
> Looks good to me.

OK, thanks for the feedback.

Basil, could you please send log messages for the 2nd and the 3rd
patches formatted as ChangeLog entries?  What is missing is the names
of functions/variables in which you make the changes, like this:

  * lisp/gnus/message.el (message-header-to, message-header-cc): Use
  define-obsolete-face-alias.

etc., I'm sure you get the idea.  You can look at the other log
messages in Git, to see more examples.

After you send the updated log messages, I will push these changes.

Thanks.