Fix Pep8 Warning
Fix Pep8 Warning

Fixes
E271 multiple spaces after keyword "return  _run_shell_command("

Change-Id: Ic6b2c88a0b7cabd04341d073ef837a13c1bb7a29

JioCloud/pbr,klmitch/pbr,WiFast/pbr,varunarya10/pbr,JioCloud/pbr,emonty/oslo-packaging,redhat-openstack/pbr,klmitch/pbr,varunarya10/pbr,citrix-openstack-build/pbr,citrix-openstack-build/pbr,WiFast/pbr,openstack-dev/pbr,emonty/oslo-packaging,redhat-openstack/pbr,citrix-openstack-build/pbr,openstack-dev/pbr,openstack-dev/pbr