Comment 1 for bug 1404931

Got something going on over here: https://review.openstack.org/#/c/143513/

It'll produce output similar to that of horizon:

steve:python-openstackclient$ openstack volume list
+--------------------------------------+--------------+-----------+------+------------------------------+
| ID | Display Name | Status | Size | Attached to |
+--------------------------------------+--------------+-----------+------+------------------------------+
| 5554d8d6-242a-47d7-893e-8c5a8553f31e | v2 | available | 1 | |
| 43d1a560-4f6c-48a4-a80c-6ec63f182b0d | vol1 | in-use | 1 | Attached to in2 on /dev/vdb |
+--------------------------------------+--------------+-----------+------+------------------------------+