Fixing docstring typo
Fixing docstring typo

Change to docstring for _build_container_hosts.

Change-Id: Ib28a509b2fd6933d9c6a5c14911305da51602ab5

wenhuizhang/os-ansible-deployment,sigmavirus24/openstack-ansible,os-cloud/os-ansible-deployment,os-cloud/os-ansible-deployment,stevelle/openstack-ansible,shane-c/openstack-ansible,achekunov/openstack-ansible,pombredanne/os-ansible-deployment,BjoernT/os-ansible-deployment,sti-jans/openstack-ansible,d34dh0r53/os-ansible-deployment,sigmavirus24/openstack-ansible,metral/os-ansible-deployment,open-switch/infra_openstack-ansible,cloudnull/os-ansible-deployment,cfarquhar/openstack-ansible,git-harry/os-ansible-deployment,dhanunjaya/os-ansible-deployment,yanyao/openstack-deployment,pombredanne/os-ansible-deployment,bunchc/openstack-ansible,antonym/openstack-ansible,jpmontez/os-ansible-deployment,stevelle/os-ansible-deployment,manuelfelipe/openstack-ansible,yanyao/openstack-deployment,sti-jans/openstack-ansible,shane-c/openstack-ansible,weezer/openstack-ansible,robb-romans/openstack-ansible,jpmontez/os-ansible-deployment,wenhuizhang/os-ansible-deployment,stevelle/openstack-ansible,sacharya/os-ansible-deployment,Logan2211/openstack-ansible,yanyao/openstack-deployment-liberty,achekunov/openstack-ansible,d34dh0r53/os-ansible-deployment,mancdaz/openstack-ansible,manuelfelipe/openstack-ansible,miguelgrinberg/os-ansible-deployment,yanyao/openstack-deployment,BjoernT/openstack-ansible,bunchc/openstack-ansible,cloudnull/os-ansible-deployment,weezer/openstack-ansible,metral/os-ansible-deployment,AlphaStaxLLC/os-ansible-deployment,yanyao/openstack-deployment-liberty,major/openstack-ansible,yanyao/openstack-ansible,open-switch/infra_openstack-ansible,BjoernT/os-ansible-deployment,yanyao/openstack-deployment-liberty,AlphaStaxLLC/os-ansible-deployment,achekunov/openstack-ansible,sigmavirus24/os-ansible-deployment,sti-jans/openstack-ansible,git-harry/os-ansible-deployment,git-harry/os-ansible-deployment,jpmontez/os-ansible-deployment,robb-romans/openstack-ansible,jpmontez/openstack-ansible,stackforge/os-ansible-deployment,sigmavirus24/os-ansible-deployment,sacharya/os-ansible-deployment,stevelle/os-ansible-deployment,cfarquhar/openstack-ansible,dhanunjaya/os-ansible-deployment,pombredanne/os-ansible-deployment,mrda/openstack-ansible,yanyao/newton,openstack/openstack-ansible,antonym/openstack-ansible,shane-c/openstack-ansible,openstack/openstack-ansible,mrda/openstack-ansible,BjoernT/os-ansible-deployment,miguelgrinberg/os-ansible-deployment,AlphaStaxLLC/os-ansible-deployment,jpmontez/openstack-ansible,VaneCloud/openstack-ansible,yanyao/newton,VaneCloud/openstack-ansible,major/os-ansible-deployment,major/openstack-ansible,yanyao/openstack-deployment,Logan2211/openstack-ansible,mrda/openstack-ansible,BjoernT/openstack-ansible,open-switch/infra_openstack-ansible,antonym/openstack-ansible,VaneCloud/openstack-ansible,major/os-ansible-deployment,stackforge/os-ansible-deployment,jpmontez/openstack-ansible,manuelfelipe/openstack-ansible,yanyao/openstack-ansible,mancdaz/openstack-ansible