bug#44316: 26.3; Faces `fixed-pitch' and `fixed-pitch-serif' are opposite what they should be

[Eli Zaretskii]

> Date: Thu, 29 Oct 2020 14:27:29 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
> 
> Since `fixed-pitch' has looked more or less the same
> from the beginning, and in particular it has had
> serifs, maybe instead of, or in addition to, having
> face `fixed-pitch-serif' we should have a face
> `fixed-pitch-sans-serif'?

We could do that, indeed.

> Or maybe we should go ahead and change the appearance
> of `fixed-pitch', so it does not have serifs?

As I explained in my other message, this is impossible, at least not
without backward-incompatible changes.  So I don't think we should do
this part.