also,this patch turn off pep8 E125 check,this for now seems to
be unnecessary,it check continuous line split.and update the
latest openstack-common https://review.openstack.org/#/c/9201
which has fix pep8 1.3 issue except for E125 check.
Change-Id: I86e6a3add56a0a2941031a1248f1696667ac56b8