[empathy] fix typo

[Guillaume Desmottes <gdesmott src gnome org>]

commit 87b4a33dd408c9d5fe33d9261b6185e1833696d5
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Mon Nov 29 08:53:08 2010 +0100

    fix typo

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d2dbbc1..cf6b116 100644
--- a/configure.ac
+++ b/configure.ac
@@ -42,7 +42,7 @@ TELEPATHY_FARSIGHT_REQUIRED=0.0.14
 TELEPATHY_GLIB_REQUIRED=0.13.1.1
 TELEPATHY_LOGGER=0.1.5
 
-# Optionnal deps
+# Optional deps
 CLUTTER_GTK_REQUIRED=0.90.3
 ENCHANT_REQUIRED=1.2.0
 GEOCLUE_REQUIRED=0.11