Fix skip conditions in some docstings tests.
diff --git a/Lib/test/test_functools.py b/Lib/test/test_functools.py
index 10868f3..4708381 100644
--- a/Lib/test/test_functools.py
+++ b/Lib/test/test_functools.py
@@ -317,7 +317,7 @@
         self.assertEqual(wrapper.__name__, 'f')
         self.assertEqual(wrapper.attr, 'This is also a test')
 
-    @unittest.skipIf(not sys.flags.optimize <= 1,
+    @unittest.skipIf(sys.flags.optimize >= 2,
                      "Docstrings are omitted with -O2 and above")
     def test_default_update_doc(self):
         wrapper = self._default_update()