ruby-openstack/ruby-openstack — pull request #51 by sorrowless (2014-11-25 09:07:43+00:00)
Title: Add method to update nova security group.

Nova security group update method was not documented long time,
accordingly to https://bugs.launchpad.net/openstack-api-site/+bug/1394238,
but openstack 'nova' cli utility have that functionality and we
really use it from time to time. So I add that according method to
ruby-openstack.