Kafo

I had to solve interesting bug when user forgot to actually provide an option:

katello-installer --capsule-foreman-oauth-key --capsule-foreman-oauth-secret --capsule-register-in-foreman

Then the instance was broken because key was remembered as: "--capsule-foreman-oauth-secret".

We could implement a tiny little thing that would warn if any parameter starts with "--" to at least warn user for those options that are in free form.