Issue 20123: Disable a problematic test.

Lib/test/test_pydoc.py

@@ -634,13 +634,14 @@ class PydocImportTest(PydocBaseTest):
 
         self.assertIn(expected, result)
 
+    @unittest.skip('some buildbots are not cooperating (#20123)')
     def test_modules_search_builtin(self):
-        expected = '_imp - '
+        expected = 'gc - '
 
         output = StringIO()
         helper = pydoc.Helper(output=output)
         with captured_stdout() as help_io:
-            helper('modules low-level')
+            helper('modules garbage')
         result = help_io.getvalue()
 
         self.assertTrue(result.startswith(expected))