
Allow users to see what resources will be changed during a stack-update. Docs change here https://review.openstack.org/132870/ Client change here https://review.openstack.org/#/c/126957/ BP: update-dry-run Co-Authored-By: Jason Dunsmore <jasondunsmore@gmail.com> Change-Id: If58bdcccfef6f5d36c0367c5267f95014232015e