bug#15447: (quail-help "korean-hangul") generates errors.

[Kenichi Handa]

In article <83li2lh2w1.fsf@gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:
> It looks like quail-help was designed to be called only by "C-h C-\",
> where it behaves reasonably, but since it's a command, it perhaps
> should have some minimal harness for when it is invoked by users
> directly.

If it is ok to break a subtle backward compatibility here,
let's make quail-help not a command.  It had to be a
command when I first implemented it, but now it doesn't have
to be.  It is now called from describe-current-input-method
by funcall.

---
Kenichi Handa
handa@gnu.org