Ignore multiple imports per line for six.moves
Ignore multiple imports per line for six.moves

In the transition to Python3 we'll be heavily using six.move to import
builtins that have changed and modules that have moved. Having them all
on one line will, in many cases, make the code look cleaner. There is
exactly what we already do with the i18n translation helpers.

bp python3
Change-Id: I5c56a1cf36749d9f190e4360d5a12616380b6598

maestro-hybrid-cloud/keystone,dstanek/keystone,dims/keystone,himanshu-setia/keystone,roopali8/keystone,klmitch/keystone,ilay09/keystone,jonnary/keystone,rajalokan/keystone,takeshineshiro/keystone,ajayaa/keystone,openstack/keystone,vivekdhayaal/keystone,jonnary/keystone,vivekdhayaal/keystone,openstack/keystone,ilay09/keystone,rajalokan/keystone,ilay09/keystone,jamielennox/keystone,mahak/keystone,vivekdhayaal/keystone,takeshineshiro/keystone,rajalokan/keystone,dims/keystone,himanshu-setia/keystone,maestro-hybrid-cloud/keystone,ajayaa/keystone,cernops/keystone,klmitch/keystone,mahak/keystone,jamielennox/keystone,idjaw/keystone,openstack/keystone,dstanek/keystone,roopali8/keystone,mahak/keystone,idjaw/keystone,dstanek/keystone,cernops/keystone