[gnome-software] Add a missing include to fix the build

[Kalev Lember <klember src gnome org>]

commit 6ec720f538dd1d976f5f8a270a08dc4733e749d4
Author: Kalev Lember <kalevlember gmail com>
Date:   Thu Feb 27 11:19:24 2014 +0100

    Add a missing include to fix the build

 src/plugins/gs-plugin-appstream.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-plugin-appstream.c b/src/plugins/gs-plugin-appstream.c
index 72caef7..d11b439 100644
--- a/src/plugins/gs-plugin-appstream.c
+++ b/src/plugins/gs-plugin-appstream.c
@@ -21,6 +21,7 @@
 
 #include <config.h>
 #include <glib/gi18n.h>
+#include <locale.h>
 
 #include <gs-plugin.h>
 #include <gs-plugin-loader.h>