Comment 5 for bug 884794

Translations are fixed from Ubuntu 11.10 Oneiric Ocelot to Ubuntu 15.10 Wily Werewolf.

https://translations.launchpad.net/ubuntu/oneiric/+source/ubiquity/+pots/ubiquity-debconf/fr/184/+translate
https://translations.launchpad.net/ubuntu/precise/+source/ubiquity/+pots/ubiquity-debconf/fr/195/+translate
https://translations.launchpad.net/ubuntu/quantal/+source/ubiquity/+pots/ubiquity-debconf/fr/197/+translate
https://translations.launchpad.net/ubuntu/raring/+source/ubiquity/+pots/ubiquity-debconf/fr/198/+translate
https://translations.launchpad.net/ubuntu/saucy/+source/ubiquity/+pots/ubiquity-debconf/fr/223/+translate
https://translations.launchpad.net/ubuntu/trusty/+source/ubiquity/+pots/ubiquity-debconf/fr/193/+translate
https://translations.launchpad.net/ubuntu/utopic/+source/ubiquity/+pots/ubiquity-debconf/fr/193/+translate
https://translations.launchpad.net/ubuntu/vivid/+source/ubiquity/+pots/ubiquity-debconf/fr/193/+translate
https://translations.launchpad.net/ubuntu/wily/+source/ubiquity/+pots/ubiquity-debconf/fr/193/+translate

The fix has been released in Ubuntu 15.04 Vivid Vervet in June 2015 through the latest version of the language pack.
http://www.ubuntuupdates.org/package/core/vivid/main/updates/language-pack-fr