Updated openstack/openstack
Project: openstack/nova  93b0fc130aad28db1546f2dacab9ce8fdf5410df
null
libvirt: Adds missing tests to copy_image

Adds missing tests to the utility method:
  libvirt.utils.copy_image

Change-Id: I1802c26cd5ab9ea0df979cc18e73fb613b87b44e