bug#23425: master branch: `message' wrongly corrupts ' to curly quote.

[Eli Zaretskii]

> From: Clément Pit-Claudel <cpitclaudel@gmail.com>
> Date: Tue, 6 Jun 2017 15:39:57 -0400
> Cc: Andreas Schwab <schwab@suse.de>, Paul Eggert <eggert@cs.ucla.edu>,
>       23425@debbugs.gnu.org, Alan Mackenzie <acm@muc.de>,
>       Emacs developers <emacs-devel@gnu.org>
> 
> (The language that prompted my initial email was unsurprisingly French, which 
> uses ' between consecutive characters (it'd be a pain to have to type 
> "l%'arrivée d%'un email", and I don't know anyone who types in the proper 
> "l’arrivée d’un email", except when their text editor auto-corrects).

You should know that there are people who claim that using u+2019 in
"l’arrivée" is incorrect, and that one should write "lʼarrivée"
instead.  The rationale is that u+2019 is a punctuation character, so
it doesn't belong in the middle of a word.  There was a long
discussion about that on the Unicode list a couple of months ago.