Updated openstack/openstack
Project: openstack/nova  b2535ea3b1a7cfe6ff0799d29702fd7c373a3b3b

docs - Fix indentation for RPC API's

Fix ERROR(s) and WARNING(s) during docs generation because of
bad indentation, spaces etc.

Change-Id: I450e929fbc8e148491b8b0a96a8c6d2aff605ab4