Ray Chen f80f8dfecb Fix PEP8 issues.
Fix some pep8 issues in doc/ext/cinder_todo.py and
doc/source/conf.py and make the code looks pretty.

Change-Id: Ie164bc7328507e20b0ab5993ba97eaadbd74bf63
2012-08-22 11:57:42 +08:00
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