conf/79415: Fix "Mothers Day" in calendar.french.

[Florent Thoumie]

Synopsis: Fix "Mothers Day" in calendar.french.

Responsible-Changed-From-To: freebsd-bugs->flz
Responsible-Changed-By: flz
Responsible-Changed-When: Fri Oct 6 23:32:28 UTC 2006
Responsible-Changed-Why: 
That's what happens when you don't take a PR you just committed.

You're supposed to MFC after the end of the freeze, you forget
about it, and when you finally find it again, the tree is
frozen again.

http://www.freebsd.org/cgi/query-pr.cgi?pr=79415