[totem/gnome-3-16] audio-preview: Fix compilation after 8ed7634

[Bastien Nocera <hadess src gnome org>]

commit d80e03fbd4916736ea6b5901e6bfae2919288157
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Jan 12 01:48:55 2016 +0100

    audio-preview: Fix compilation after 8ed7634
    
    The locale.h include was missing.
    
    Spotted by Daniel Stone <daniel fooishbar org>

 src/totem-audio-preview.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/totem-audio-preview.c b/src/totem-audio-preview.c
index e3fb700..5feeba5 100644
--- a/src/totem-audio-preview.c
+++ b/src/totem-audio-preview.c
@@ -36,6 +36,7 @@
 #include <stdlib.h>
 #include <glib/gi18n.h>
 #include <gio/gio.h>
+#include <locale.h>
 
 #include "totem-gst-helpers.h"
 #include "totem-resources.h"