Description of problem:

SM is super slow tool, and this wrapper is adding additional delay while executing for each repo to add individual SM commands:

...
[ INFO  ] Executing: env LC_ALL=C subscription-manager repos --enable rhel-7-server-rhv-4.1-rpms
Repository 'rhel-7-server-rhv-4.1-rpms' is enabled for this system.
[ INFO  ] Enabling repository: rhel-7-server-rhv-4-tools-rpms
[ INFO  ] Executing: env LC_ALL=C subscription-manager repos --enable rhel-7-server-rhv-4-tools-rpms
...

Version-Release number of selected component (if applicable):
ovirt-engine-hyper-upgrade-1.0.0-3.el7ev.noarch.rpm

How reproducible:
100%

Steps to Reproduce:
1. run the command
2.
3.

Actual results:
it makes executing SM for enabling each repo individually

Expected results:
it should enable repos in one shot as SM is super slow

Additional info: