docstring fix
docstring fix

Change-Id: I35e44872c3dc7508d5991dc967bbceb22d6bea51

dhanunjaya/neutron,swdream/neutron,cloudbase/neutron,shahbazn/neutron,dims/neutron,jumpojoy/neutron,eayunstack/neutron,yanheven/neutron,cloudbase/neutron,SamYaple/neutron,SamYaple/neutron,JianyuWang/neutron,noironetworks/neutron,vivekanand1101/neutron,shahbazn/neutron,glove747/liberty-neutron,igor-toga/local-snat,mahak/neutron,wolverineav/neutron,glove747/liberty-neutron,apporc/neutron,vivekanand1101/neutron,klmitch/neutron,mahak/neutron,MaximNevrov/neutron,sebrandon1/neutron,jumpojoy/neutron,dims/neutron,chitr/neutron,openstack/neutron,apporc/neutron,bigswitch/neutron,mattt416/neutron,huntxu/neutron,asgard-lab/neutron,openstack/neutron,bigswitch/neutron,mahak/neutron,yanheven/neutron,mattt416/neutron,asgard-lab/neutron,MaximNevrov/neutron,wolverineav/neutron,JianyuWang/neutron,openstack/neutron,eayunstack/neutron,huntxu/neutron,chitr/neutron,swdream/neutron,klmitch/neutron,sebrandon1/neutron,igor-toga/local-snat,dhanunjaya/neutron,noironetworks/neutron