Updated openstack/openstack
Project: openstack/keystone  2abe8b417ea1e445b8320b2daba5537dcd722414
null
Fix federation documentation reference

The documentation for the federation extension referenced a class
that doesn't exist for the driver. Using the correct class name
will make it easier for deployers to configure federation.

bp identity-providers

Change-Id: I0f69d3465be78079a89e6d2c5e717aed04136a50