Updated openstack/openstack
Project: openstack/heat  5e3d4b70a3b124cce15676d820bba4d3856fe7cf

Validate user_data_format for server with deployment

Validation error will be raised if user_data_format is not set
correctly.

Partial-Bug: #1295536
Change-Id: I0509c9c3a71d09fa8e2113710d561ffd3289d814