[gnome-color-manager] trivial: fix up a gcc warning in gcm_test_sample_window_move_window()

[Richard Hughes <rhughes src gnome org>]

commit d2bb55d4cd8c530d9bce7d9c977b48e9288afd85
Author: Richard Hughes <richard hughsie com>
Date:   Sat Mar 26 18:19:47 2011 +0000

    trivial: fix up a gcc warning in gcm_test_sample_window_move_window()

 src/gcm-self-test.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gcm-self-test.c b/src/gcm-self-test.c
index 2a52059..7ff812f 100644
--- a/src/gcm-self-test.c
+++ b/src/gcm-self-test.c
@@ -807,7 +807,7 @@ static void
 gcm_test_sample_window_move_window (GtkWindow *window, const gchar *output_name)
 {
 	GcmX11Screen *screen;
-	GcmX11Output *output;
+	GcmX11Output *output = NULL;
 	guint x, y;
 	guint width, height;
 	gint window_width, window_height;