Fixup small bug with dockerhub publisher
Fixup small bug with dockerhub publisher

Jinja2 vs gotpl...

Change-Id: I27a54eb9202ac5f3e9b3ef9c307e81475e8833f5

nihilifer/kolla,stackforge/kolla,stackforge/kolla,openstack/kolla,openstack/kolla,rahulunair/kolla,nihilifer/kolla,stackforge/kolla,rahulunair/kolla