Description of problem:
While creating the geo-rep session, invalid slave url with single colon (:) gives proper and clear error message. But specifying three or more colons (:::) gives unclear error message.

Version-Release number of selected component (if applicable):
glusterfs-3.4.0.14rhs-1.el6rhs.x86_64

How reproducible:
Always

Steps to Reproduce:
1. gluster v geo master_vol slave_node:slave_vol create
2. gluster v geo master_vol slave_node:::slave_vol create

Actual results:
After step 1

[root@spitfire ]# gluster v geo master lightning:slave create
lightning:slave is not a valid slave url.
geo-replication command failed

[root@spitfire ]# gluster v geo master lightning:::slave create
Unable to create /var/lib/glusterd/geo-replication/master-:slave/ssh%3A%2F%2Froot%4010.70.43.145%3Agluster%3A%2F%2F127.0.0.1%3A%3Aslave.status. Error : Bad file descriptor
geo-replication command failed


Expected results:
It should say the slave url is not valid.

Additional info: