Fixed typo causing bug in openstack-hosts-setup
Fixed typo causing bug in openstack-hosts-setup

The '$' at the end of the dpkg-query command causes it to return 2,
which means python won't be installed even though it should be.

Change-Id: I3937448a419a1f2d6405952e1cd7a4002b8d09af

stackforge/os-ansible-deployment,openstack/openstack-ansible,yanyao/openstack-ansible,bunchc/openstack-ansible,cfarquhar/openstack-ansible,cloudnull/os-ansible-deployment,robb-romans/openstack-ansible,bunchc/openstack-ansible,BjoernT/openstack-ansible,BjoernT/openstack-ansible,BjoernT/os-ansible-deployment,cloudnull/os-ansible-deployment,yanyao/openstack-ansible,robb-romans/openstack-ansible,openstack/openstack-ansible,os-cloud/os-ansible-deployment,cfarquhar/openstack-ansible,stackforge/os-ansible-deployment,BjoernT/os-ansible-deployment,BjoernT/os-ansible-deployment,os-cloud/os-ansible-deployment