[accounts-dialog] Add a missing include

[Matthias Clasen <matthiasc src gnome org>]

commit c3b956fc3365fefc997e315e91043d77e3abc078
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jan 13 20:55:54 2010 -0500

    Add a missing include

 src/um-language-dialog.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/um-language-dialog.c b/src/um-language-dialog.c
index 9edc5e0..3e1fe1f 100644
--- a/src/um-language-dialog.c
+++ b/src/um-language-dialog.c
@@ -20,6 +20,7 @@
  */
 
 #include <stdlib.h>
+#include <locale.h>
 
 #include <glib.h>
 #include <glib/gi18n.h>