This is a prerequisite to use ref='fr_BF' later on other yet to be added
fr_*.xml locale data files from fdo#[79348-79353]

Doubts lined out in
https://bugs.freedesktop.org/show_bug.cgi?id=79347#c3
can be addressed later.

Change-Id: I5cd5a199d0fc2e833227997d5c353e17a7fbbbff