gmock_output_test: normalize golden file output to unix line endings

When checked out on Windows, the repo might use \r\n line endings,
and so the golden output has them.  Adjust for that.

PiperOrigin-RevId: 502577222
Change-Id: Iabfe537f6d95a49bf6bdcb934e855d28c65f6f89

googlemock/test/gmock_output_test.py

@@ -159,6 +159,9 @@ def testOutput(self):
     golden_file = open(GOLDEN_PATH, 'rb')
     golden = golden_file.read().decode('utf-8')
     golden_file.close()
+    # On Windows the repository might have been checked out with \r\n line
+    # endings, so normalize it here.
+    golden = ToUnixLineEnding(golden)
 
     # The normalized output should match the golden file.
     self.assertEqual(golden, output)