Description of problem:
--foreman-proxy-plugin-remote-execution-script-install-key installer option is expected to deploy the key into /root/.ssh/authorized_keys, but doesn't do anything unless passed to the installer on its completely first invocation.
 

How reproducible:
Always
 

Is this issue a regression from an earlier version:
No
 

Steps to Reproduce:

1. Install satellite

2. Run installer again, this time, pass it --foreman-proxy-plugin-remote-execution-script-install-key as an option

3.

Actual behavior:
Installer passes, nothing changes, /root/.ssh/authorized_keys is left in its original state.

Expected behavior:
Installer passes, /root/.ssh/authorized_keys contains, possibly among other things, the contents of ~foreman-proxy/.ssh/id_rsa_foreman_proxy.pub

Business Impact / Additional info: