[gtk/update-ci-to-f34] Add debug spew to gdk tests

[Matthias Clasen <matthiasc src gnome org>]

commit bafa23fa2ccbaddbaf7235a63c0fca72fc64c461
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed May 5 15:41:46 2021 -0400

    Add debug spew to gdk tests

 testsuite/gdk/gdk.test.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/testsuite/gdk/gdk.test.in b/testsuite/gdk/gdk.test.in
index 9784de8542..b766ceb9b6 100644
--- a/testsuite/gdk/gdk.test.in
+++ b/testsuite/gdk/gdk.test.in
@@ -1,4 +1,4 @@
 [Test]
-Exec=/bin/sh -c "env G_ENABLE_DIAGNOSTIC=0 GTK_A11Y=test @testexecdir@/@test@ --tap -k --verbose"
+Exec=/bin/sh -c "env GDK_DEBUG=clipboard G_ENABLE_DIAGNOSTIC=0 GTK_A11Y=test @testexecdir@/@test@ --tap -k 
--verbose"
 Type=session
 Output=TAP