bug#32562: 26; `read-char(-exclusive)' and `characterp'

[Eli Zaretskii]

> Date: Mon, 10 Sep 2018 08:01:40 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: Eli Zaretskii <eliz@gnu.org>, 32562@debbugs.gnu.org
> 
> > A character with modifiers doesn't satisfy characterp, but it is still a
> > character (which read-char can return).
> 
> Yes, well, that's what I found a bit confusing wrt the
> doc and function names. It wasn't (isn't?) too clear
> just what we mean by "character", in that case.

I made the documentation say "character event" where it matters.