Description of problem:

when running rate-limits and absolute-limits we get the below output:

[root@opens-vdsb ~(keystone_admin)]# cinder rate-limits
/usr/lib/python2.6/site-packages/cinderclient/shell.py:507: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  message = e.message
ERROR: object of type 'generator' has no len()
[root@opens-vdsb ~(keystone_admin)]# cinder absolute-limits
/usr/lib/python2.6/site-packages/cinderclient/shell.py:507: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  message = e.message
ERROR: object of type 'generator' has no len()


both of these commands are working for nova. 

Version-Release number of selected component (if applicable):

openstack-cinder-2013.1.2-3.el6ost.noarch

How reproducible:

100%

Steps to Reproduce:
1. create an AIO 
2. run cinder rate-limits
3. run cinder absolute-limits

Actual results:

we get: ERROR: object of type 'generator' has no len() for both commands

Expected results:

if the commands are deprecated from cinder they should be removed or have a human readable error. 
if they are not deprecated they should be fixed to show the output. 


Additional info:

nova works for both commands: 

[root@opens-vdsb ~(keystone_admin)]# nova absolute-limits
+-------------------------+-------+
| Name                    | Value |
+-------------------------+-------+
| maxImageMeta            | 128   |
| maxPersonality          | 5     |
| maxPersonalitySize      | 10240 |
| maxSecurityGroupRules   | 20    |
| maxSecurityGroups       | 10    |
| maxServerMeta           | 128   |
| maxTotalCores           | 20    |
| maxTotalFloatingIps     | 10    |
| maxTotalInstances       | 10    |
| maxTotalKeypairs        | 100   |
| maxTotalRAMSize         | 51200 |
| totalCoresUsed          | 9     |
| totalFloatingIpsUsed    | 6     |
| totalInstancesUsed      | 9     |
| totalRAMUsed            | 4608  |
| totalSecurityGroupsUsed | 1     |
+-------------------------+-------+


[root@opens-vdsb ~(keystone_admin)]# nova rate-limits
+--------+-----------------+-------+--------+--------+----------------------+
| Verb   | URI             | Value | Remain | Unit   | Next_Available       |
+--------+-----------------+-------+--------+--------+----------------------+
| DELETE | *               | 100   | 99     | MINUTE | 2013-07-16T11:33:24Z |
| GET    | */os-fping      | 12    | 12     | HOUR   | 2013-07-22T14:37:09Z |
| GET    | *changes-since* | 3     | 3      | MINUTE | 2013-07-22T14:37:09Z |
| POST   | *               | 10    | 9      | MINUTE | 2013-07-17T16:21:29Z |
| POST   | */servers       | 50    | 50     | DAY    | 2013-07-22T14:37:09Z |
| PUT    | *               | 10    | 10     | MINUTE | 2013-07-22T14:37:09Z |
+--------+-----------------+-------+--------+--------+----------------------+