[gtk+] Fix an sed accident

[Matthias Clasen <matthiasc src gnome org>]

commit 67a18b7cf95d1668fb886148d43c6cca6628f194
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Feb 4 08:31:13 2013 -0500

    Fix an sed accident
    
    This broke our css parser tests. Yay for tests !

 gtk/gtkcssimagesurface.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkcssimagesurface.c b/gtk/gtkcssimagesurface.c
index f2b6704..8f2e612 100644
--- a/gtk/gtkcssimagesurface.c
+++ b/gtk/gtkcssimagesurface.c
@@ -80,7 +80,7 @@ gtk_css_image_surface_print (GtkCssImage *image,
   base64 = g_base64_encode (array->data, array->len);
   g_byte_array_free (array, TRUE);
 
-  g_string_append (string, "surface(\"data:image/png;base64,");
+  g_string_append (string, "url(\"data:image/png;base64,");
   g_string_append (string, base64);
   g_string_append (string, "\")");