Comment 0 for bug 1652414

In the 7.0.0 Novaclient release we added some warning log about using "endpoint_type"
rather than "interface" when init novaclient:
https://github.com/openstack/python-novaclient/blob/master/novaclient/client.py#L312-L327

This is now causing alot jenkins failures acroos projects that is using novaclient with
enable_lazy set to False. As in this kind of scenario the warning message is a message
object instead of unicode sting and it cannot be added:
http://git.openstack.org/cgit/openstack/oslo.i18n/tree/oslo_i18n/_message.py#n227
and "Message object do not support addition" will raise.