French translation update for r26759.
French translation update for r26759.

* subversion/po/fr.po: po-updates + fixes

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion