Fix broken links in docs. (#9148)
diff --git a/docs/auth.rst b/docs/auth.rst
index f309a3a..d0e84c6 100644
--- a/docs/auth.rst
+++ b/docs/auth.rst
@@ -188,7 +188,7 @@
to use ``oauth2client``'s credentials with this library, you'll need to
`convert them`_.
-.. _oauth2client: https://github.com/Google/oauth2client.
+.. _oauth2client: https://github.com/Google/oauth2client
.. _client secrets: https://developers.google.com/api-client-library/python/guide/aaa_oauth#flow_from_clientsecrets
.. _webserver flow: https://developers.google.com/api-client-library/python/guide/aaa_oauth#OAuth2WebServerFlow
.. _convert them: http://google-auth.readthedocs.io/en/stable/user-guide.html#user-credentials