Updated openstack/openstack
Project: openstack/neutron  40df10842e21b6cd720b8ea7432d3951a4b4b497

Fix incorrect number of args to string format

Since there wasn't already one, also add a unittest for
PortProfileBinding and repr() functions.

Change-Id: Ibd8c5a21a7743af4c1c302495a65eeb5e45f6315