Updated openstack/openstack
Project: openstack/heat  0fe67485f9eab4e00a6cb67ee027bd99d06d2bc4
null
API tolerate None environment string

If an API request has a None environment argument, we should not
reject the request, but treat it the same as an empty environment.

Change-Id: I812f308ef38833e89dfa2ce01263a297032f563a
Closes-Bug: #1273993