pep8: silence several errors with no syntactical change

Change-Id: Ic24b1a871d6f4cff448d2bb39b88014a9810c9c3
Signed-off-by: Dan Kenigsberg <danken@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/26457
Reviewed-by: Francesco Romani <fromani@redhat.com>
Reviewed-by: Yaniv Bronhaim <ybronhei@redhat.com>