Description of problem:
It always uses rsync to sync data even though use_tarssh is set to true.

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

How reproducible:
Always

Steps to Reproduce:
1. Setup geo-rep between two gluster volumes and start it
2. Set use_tarssh to true
3. Write a huge file on master
4. ps -ef | egrep "tar|rsync" while the big file is syncing to slave.

It show rsync process instead of tar over ssh

Actual results:
use_tarssh has not effect on sync-engine. It's always using rsync.

Expected results:
use_tarssh should use tarssh and not rsync


Additional info: