Issue #17041: Fix testing when Python is configured with the

--without-doc-strings.

Lib/test/test_functools.py

@@ -290,6 +290,7 @@ class TestUpdateWrapper(unittest.TestCase):
         with self.assertRaises(AttributeError):
             functools.update_wrapper(wrapper, f, assign, update)
 
+    @support.requires_docstrings
     @unittest.skipIf(sys.flags.optimize >= 2,
                      "Docstrings are omitted with -O2 and above")
     def test_builtin_update(self):