Updated openstack/openstack
Project: openstack/nova  4b7401ccc6a1677b698538e1ba4f2a515630ac67
null
Fix english grammar in the quota error messages.

The first one was already correct, but the verb was
missing from the minimum- and maximum-related errors.

Change-Id: I41a80db5d405e9882e356be4bb75ef26724f9824