fix contributor messages
fix contributor messages

Change-Id: Ib3e561cfb710415f4b49a06e84ea8fdf5cdd7ae8

openstack/stackalytics,0xf2/stackalytics,stackforge/stackalytics,openstack/stackalytics,0xf2/stackalytics,openstack/stackalytics,0xf2/stackalytics,stackforge/stackalytics,openstack/stackalytics,0xf2/stackalytics,stackforge/stackalytics