[gtk+] css node tests: Update expected output

[Timm Bäder <baedert src gnome org>]

commit 1c9e3af4824e933e48da021d747ece491aad7f39
Author: Timm Bäder <mail baedert org>
Date:   Fri Dec 8 21:07:41 2017 +0100

    css node tests: Update expected output

 testsuite/css/nodes/entries.nodes |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/testsuite/css/nodes/entries.nodes b/testsuite/css/nodes/entries.nodes
index 0e6108b..7339c04 100644
--- a/testsuite/css/nodes/entries.nodes
+++ b/testsuite/css/nodes/entries.nodes
@@ -23,7 +23,7 @@
         entry:dir(ltr)
           undershoot.left:dir(ltr)
           undershoot.right:dir(ltr)
-        button.down:dir(ltr)
+        button.image-button.down:dir(ltr)
           image:dir(ltr)
-        button.up:dir(ltr)
+        button.image-button.up:dir(ltr)
           image:dir(ltr)