bug#59199: [Elisp Manual]; 28.2; "[No value for “VERSION”]" in Introduction

[Eli Zaretskii]

> From: Stefan Kangas <stefankangas@gmail.com>
> Date: Fri, 11 Nov 2022 21:42:13 -0800
> Cc: 59199@debbugs.gnu.org
> 
> >>     This is edition [No value for “VERSION”] of the GNU Emacs Lisp
> >>     Reference Manual, corresponding to Emacs version 28.2.
> >
> > Is this the PDF format or some other format?
> >
> > Stefan, did you set VERSION when generating the manuals?
> 
> No, I followed the instructions in make-tarball.txt, more specifically
> the ones starting with this line:

That's fine.

> I believe we could fix this in intro.texi in the same way as we do in
> elisp.texi.  See the attached patch.
> 
> WDYT?

We should have both @iftex and @ifset there.  Otherwise, okay.

Thanks.