Description of problem:
satellite-clone is failing with error "Please update the variables in satellite-clone-vars.yml".


Version-Release number of selected component (if applicable):
satellite-clone-1.1.4-1.el7sat.noarch

How reproducible:
always

Steps to Reproduce:
1.Follow https://access.redhat.com/documentation/en-us/red_hat_satellite/6.2/html/installation_guide/upgrading_satellite_server_and_capsule_server#migrating_a_satellite_server
2.on the target server made the required changes for backup_dir and keep register_to_portal setting commented
3. run the satellite-clone

Actual results:
satellite-clone was failing with the below error-
---------------------------------
TASK [satellite-clone : Check that mandatory variables are updated] ******************************************************************************
fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "msg": "Please update the variables in satellite-clone-vars.yml (after copying satellite-clone-vars.sample.yml)"}

msg: Please update the variables in satellite-clone-vars.yml (after copying satellite-clone-vars.sample.yml)
        to retry, use: --limit @/usr/share/satellite-clone/satellite-clone-playbook.retry
---------------------------------

Once the register_to_portal un-commented and explicitly set to false, stallite-clone ran.
Expected results:
Error message should be guiding to the accurate failure reason.

Additional info:
[root@target-server ~]# ll /backup/katello-backup-2017-12-14/
total 43551712
-rw-r--r--. 1 root root     1140339 Dec 14 18:17 candlepin.dump
-rw-r--r--. 1 root root     1732864 Dec 14 18:17 config_files.tar.gz
-rw-r--r--. 1 root root    27062971 Dec 14 18:17 foreman.dump
-rw-r--r--. 1 root root           0 Dec 14 18:17 metadata
drwxr-xr-x. 1 root root          36 Dec 14 18:17 mongo_dump
-rw-r--r--. 1 root root 44567007232 Dec 14 18:27 pulp_data.tar