Make E128 pep8 clean

Change-Id: I9ac6e301d361b7bac8561a1f468c40be23e1ddcc
Reviewed-on: https://review.openstack.org/36281
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins