bug#3526: 23.0.94; `list-character-sets' display

[Kenichi Handa]

In article <8385521F908145EE8D60682CEAB9D7D1@us.oracle.com>, "Drew Adams" 
<drew.adams@oracle.com> writes:

> Thanks for this info. Maybe we could have a link from the
> `list-character-sets' display to the Info node that
> explains this?

> And maybe we could include a one-liner that explains (most of) what it means?
> E.g., as the doc string says: "used only as a parent or a subset of some other
> charset"

I updated the Info node (emacs)Charsets for the new way of
charsets handling and added @findex for list-character-sets
(in doc/emacs/mule.texi), and modified list-character-sets-1
to do above (in lisp/international/mule-diag.el).  Please
check the English wording of the new text and fix/improve
it.

---
Kenichi Handa
handa@m17n.org