[gtk+] css tests: Fix expected output

[Matthias Clasen <matthiasc src gnome org>]

commit 132abb8749f6c175a4277056ec04b7ed826a7d5e
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Feb 5 15:50:35 2016 +0100

    css tests: Fix expected output
    
    This is fallout from f7ec9c98ef0ef8740c93f96af9d971b0211118c1.

 testsuite/css/nodes/buttons.nodes |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/testsuite/css/nodes/buttons.nodes b/testsuite/css/nodes/buttons.nodes
index 79af537..49f01e1 100644
--- a/testsuite/css/nodes/buttons.nodes
+++ b/testsuite/css/nodes/buttons.nodes
@@ -19,10 +19,10 @@
     button.text-button:dir(ltr)
       label:dir(ltr)
     button.image-button:dir(ltr)
-      GtkAlignment:dir(ltr)
+      widget:dir(ltr)
         box.horizontal:dir(ltr)
           image:dir(ltr)
     button.image-button:dir(ltr)
-      GtkAlignment:dir(ltr)
+      widget:dir(ltr)
         box.horizontal:dir(ltr)
           image:dir(ltr)