[gtk+] gtktextlayout: fix to quiet a warning

[Sebastien Lafargue <slafargue src gnome org>]

commit ce8dc5186127ae175610366671a30d69625ebaa9
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Thu Dec 18 21:00:45 2014 +0100

    gtktextlayout: fix to quiet a warning
    
    Gcc complains about a possible use of a not initialised
    widget ref ( which can't happen in reality )
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741702

 gtk/gtktextlayout.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktextlayout.c b/gtk/gtktextlayout.c
index 55a0e12..da3a0e8 100644
--- a/gtk/gtktextlayout.c
+++ b/gtk/gtktextlayout.c
@@ -1640,7 +1640,7 @@ add_child_attrs (GtkTextLayout      *layout,
   PangoRectangle logical_rect;
   gint width, height;
   GSList *tmp_list;
-  GtkWidget *widget;
+  GtkWidget *widget = NULL;
 
   width = 1;
   height = 1;