Follow-up to #9199: Fix str.join use, add newlines.
Follow-up to #9199: Fix str.join use, add newlines.

Thanks to Konrad Delong for writing a test for upload_docs
--show-response in distutils2, letting me catch my mistake.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator