To debug DNS issues other commands should be used like 'dig', 'host',
'nslookup' instead of command 'ipa dns-resolve'.
This command is executed on server side, what may not be helpful with
debugging clients.
'ipa dns-resolve' command is worse copy of host command, users should use
'host' command instead.
dns-resolve is removed from CLI
https://fedorahosted.org/freeipa/ticket/5466
Reviewed-By: Petr Spacek <pspacek@redhat.com>