style: further indented conditional for DeletePost
style: further indented conditional for DeletePost

Fixed pylint error for bad-continuation where
the second line of the conditional did not have
consistent indentation.

tstillwell2k17/GAE-BLOGAPP-MULTI_USER-DEMO,tstillwell2k17/GAE-BLOGAPP-MULTI_USER-DEMO,tstillwell2k17/GAE-BLOGAPP-MULTI_USER-DEMO