fix: test wrong on windows

Signed-off-by: yihong0618 <[email protected]>

Author: yihong0618

Lib/test/test_pydoc/test_pydoc.py

@@ -2179,7 +2179,8 @@ def mock_getline(prompt):
             with unittest.mock.patch.object(helper, "getline", mock_getline):
                 helper.interact()
 
-        return output.getvalue().split(os.linesep)
+        # handle different line endings across platforms consistently
+        return output.getvalue().splitlines(keepends=False) + ['']
 
     def test_keywords(self):
         self.assertEqual(sorted(pydoc.Helper.keywords),