Updated openstack/openstack
Project: openstack/neutron  b2b0dcec995d5c91d50dc8641988c7515113c935

Avoid constructing a RouterInfo object to get namespace name

Constructing a RouterInfo object just for a string concatenation is
inefficient and adds more dependence on the class which needs
refactoring.

Change-Id: Ibaf369d6ebe9285a0c845802def59bfa26ac0fd5