I suspect it's just Aoineko being fancy.
Please could we have a plain old comma instead?
I didn't made any aesthetic change.
It was just a bug.
The file is shared on the french wikipedia at this address :
http://fr.wikipedia.org/wiki/Wikip%E9dia:LanguageFr.php
I asked everybody if they were ok with this new version before to send it.
By the way the old version was " à " but I put ", " like Tarquin
suggested.
You are free to change.
Aoineko