Hosts file not updated when IP is passed as option
When an IPA server with unresolvable hostname is being installed,
a hostname record must be inserted to /etc/hosts or the
installation will fail. However, it is not inserted when IP
address is passed as an option (--ip-address) and not
interactively. This patch fixes this so that /etc/hosts
record is inserted in both cases.
https://fedorahosted.org/freeipa/ticket/2074