ui/gtk: Fix build (missing include for setlocale)

At least for Ubuntu Linux locale.h is needed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-id: 1361514481-26164-1-git-send-email-sw@weilnetz.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

ui/gtk.c

diff --git a/ui/gtk.c b/ui/gtk.c
index 29156be..5f91de4 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -37,6 +37,7 @@
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
 #include <glib/gi18n.h>
+#include <locale.h>
 #include <vte/vte.h>
 #include <sys/types.h>
 #include <sys/socket.h>