[gtk+] Silence a compiler warning

[Matthias Clasen <matthiasc src gnome org>]

commit 0d49b97fcea9eda93dec9418fd383f1f6433487b
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed May 1 21:35:39 2013 -0400

    Silence a compiler warning

 gtk/tests/filechooser.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/tests/filechooser.c b/gtk/tests/filechooser.c
index e37babe..529f87d 100644
--- a/gtk/tests/filechooser.c
+++ b/gtk/tests/filechooser.c
@@ -653,7 +653,7 @@ test_file_chooser_button_with_response (const FileChooserButtonTest *setup, gint
 {
   WindowAndButton w;
   SignalWatcher *watcher;
-  GtkWidget *fc_dialog;
+  GtkWidget *fc_dialog = NULL;
   int iterations;
   int i;