bug#35202: 27.0.50; Info-quoted false positives and false negatives

[Eli Zaretskii]

> From: Mauro Aranda <maurooaranda@gmail.com>
> Date: Mon, 8 Apr 2019 20:30:19 -0300
> 
> diff --git a/lisp/info.el b/lisp/info.el
> index f3b413a..268ecd8 100644
> --- a/lisp/info.el
> +++ b/lisp/info.el
> @@ -4269,7 +4269,7 @@ Info-quoted
>  ;; the former can be done much more reliably, i.e. without risking
>  ;; false positives.
>  (defvar Info-mode-font-lock-keywords
> -  '(("‘\\([^’]*\\)’" (1 'Info-quoted))))
> +  '(("‘\\([‘’]?\\|[^‘’]*\\)’" (1 'Info-quoted))))

Thanks, but I'm worried how we will be able to make sure this change
doesn't break display in some other places.  Would it make sense to
search all our Info files for the new regexp, and examine the display
of all the places that match?  Or did you already do that?