enable H401 hacking check
enable H401 hacking check

This change corrects H401 (docstring should not start with a space)
errors and enables the check
Change-Id: I2f798421d5895fcec349c757d27b7f085ee001e7
Partial-Bug: 1329017

gandelman-a/neutron-lbaas,gotostack/neutron-lbaas,citrix-openstack-build/neutron-lbaas,gandelman-a/neutron-lbaas,dougwig/x-neutron-lbaas,gotostack/neutron-lbaas,gandelman-a/neutron-lbaas,gotostack/neutron-lbaas