po: add missing letter for French message

Add the missing "e" in "de".  While it is possible in French to omit it,
that only occurs with an apostrophe and only when the next word starts
with a vowel or mute h, which is not the case here.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Acked-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/po/fr.po b/po/fr.po
index d20fc44..75b1e75 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -6503,7 +6503,7 @@
 #: remote.c:1088
 #, c-format
 msgid "unable to delete '%s': remote ref does not exist"
-msgstr "suppression d '%s' impossible : la référence distante n'existe pas"
+msgstr "suppression de '%s' impossible : la référence distante n'existe pas"
 
 #: remote.c:1100
 #, c-format