bug#31807: 27.0; `info-apropos' bad name or bad matching

[Drew Adams <drew.adams@oracle.com>]

> >> (setq nodename  (format "Index for '%s'" apropos-regexp))
>
> Can you explain how you produced that text?  Unless you ran the code
> through message like (message (prin1-to-string (defun ...))) I'm a bit
> confused as to how it could happen.

I copied it from `info.el'.  Bad idea, I know, now that Emacs
code has been corrupted through and through. ;-)

However, I see now that although what I copied from `info.el'
uses LEFT SINGLE QUOTATION MARK and RIGHT SINGLE QUOTATION MARK,
after the bug report was submitted what shows in the bug
description is APOSTROPHE and APOSTROPHE.

So things seem worse than I thought.  What I yanked into
the the `M-x report-emacs-bug' buffer and ended up pasting
into the mail message was apparently different from what
I copied from `info.el'.  Just where that translation occurred
(`report-emacs-bug'? pasting into the Outlook mail message?),
I don't know.

Anyway, please read it as being left and right single quotation
marks.  Those are what caused Emacs to ask me whether I wanted
to save the buffer using any of a zillion exotic encodings
(a couple of which are not so exotic, but they're buried among
others).