Reverting the Revision: 77368.  I committed Flox's big patch for tests by
mistake. ( It may come in for sure tough)
diff --git a/Lib/test/test_marshal.py b/Lib/test/test_marshal.py
index af89d18..7669182 100644
--- a/Lib/test/test_marshal.py
+++ b/Lib/test/test_marshal.py
@@ -129,9 +129,7 @@
 
     def test_buffer(self):
         for s in ["", "Andrè Previn", "abc", " "*10000]:
-            # Silence Py3k warning
-            with test_support.check_warnings():
-                b = buffer(s)
+            b = buffer(s)
             new = marshal.loads(marshal.dumps(b))
             self.assertEqual(s, new)
             marshal.dump(b, file(test_support.TESTFN, "wb"))