Updated openstack/openstack
Project: openstack/python-troveclient  872abf2c9d57bdec03433b23bf48ac4eb5a79ac6

Improve help text for --size option

Update help text to indicate that --size may be a required parameter.

Change-Id: If1a40475a8d4a8e1c71c2c1e61a87bacb6e42e00
Closes-Bug: 1336807