Updated openstack/openstack
Project: openstack/heat  376f6e9095b4bbded32b2ee834880fcea0dc6a54
null
RandomString use the random string as the resource_id

This allows template authors to ref the resource to get the string
as an alternative to getting the value attribute.

Change-Id: If2b51923414655befd7af21e2de701e83b7994b6