Description of problem:
qpid-cluster -s <ID> crashes with
'NoneType' object has no attribute 'split'


qpid-cluster is not able to stop node in the cluster.
See more details in last section (Additional info).

Version-Release number of selected component (if applicable):
qpid-tools-0.10-5.el5

How reproducible:
100%


Steps to Reproduce:
1. start cluster of one/two nodes
2. list nodes and IDs with 
   'qpid-cluster'
3. perform node stop by 
   'qpid-cluster -s <ID>'
3. echo $?
  
Actual results:
qpid-cluster crashes and requested node is not stopped.

Expected results:
qpid-cluster should not crash and requested node should be stopped.


Additional info:

[root@dhcp-26-234 ~]# qpid-cluster -h
usage: qpid-cluster [options] BROKER

Example: $ qpid-cluster -C  broker-host:10000

options:
  -h, --help            show this help message and exit
  -t SECS, --timeout=SECS
                        Maximum time to wait for broker connection (in
                        seconds)
  -C, --all-connections
                        View client connections to all cluster members
  -c ID, --connections=ID
                        View client connections to specified member
  -d HOST:PORT, --del-connection=HOST:PORT
                        Disconnect a client connection
  -s ID, --stop=ID      Stop one member of the cluster by its ID
  -k, --all-stop        Shut down the whole cluster
  -f, --force           Suppress the 'are you sure' prompt
  -n, --numeric         Don't resolve names
0
[root@dhcp-26-234 ~]# qpid-cluster
  Cluster Name: freznice-virt-cluster
Cluster Status: ACTIVE
  Cluster Size: 2
       Members: ID=192.168.1.3:2387 URL=amqp:tcp:10.34.26.234:5672,tcp:192.168.1.3:5672
              : ID=192.168.1.4:2353 URL=amqp:tcp:10.34.26.233:5672,tcp:192.168.1.4:5672
[root@dhcp-26-234 ~]# qpid-cluster -s 192.168.1.4:2353
'NoneType' object has no attribute 'split'
[root@dhcp-26-234 ~]# echo $?
1
[root@dhcp-26-234 ~]# qpid-cluster
  Cluster Name: freznice-virt-cluster
Cluster Status: ACTIVE
  Cluster Size: 2
       Members: ID=192.168.1.3:2387 URL=amqp:tcp:10.34.26.234:5672,tcp:192.168.1.3:5672
              : ID=192.168.1.4:2353 URL=amqp:tcp:10.34.26.233:5672,tcp:192.168.1.4:5672
[root@dhcp-26-234 ~]# qpid-cluster -s 192.168.1.3:2387
'NoneType' object has no attribute 'split'
[root@dhcp-26-234 ~]# qpid-cluster -s 192.168.1.3
'NoneType' object has no attribute 'split'
[root@dhcp-26-234 ~]# qpid-cluster -s 192.168.1.2
'NoneType' object has no attribute 'split'
[root@dhcp-26-234 ~]# rpm -qf `which qpid-cluster`
qpid-tools-0.10-5.el5