Updated openstack/openstack
Project: openstack/nova  f1c2c5fda8c05ba696d64b3cd2d59bc017c3a04f

make lifecycle event logs more clear

Instead of logging integers in a cryptic way, log the human
readable strings for VM event state transitions. Also use the
existing instance_uuid port of the logger instead of putting that
separately into our log message.

Change-Id: I96c39ad4494aa06a8dd5bd942c669a16836a8b9c