During replica installation the local IP addresses should be added to DNS but will fail because a string is being passed to an argument expecting a list. Convert to a list before passing in individual IPs. Discovered when fixing https://pagure.io/freeipa/issue/7408 Signed-off-by: Rob Crittenden <rcritten@redhat.com> Reviewed-By: Christian Heimes <cheimes@redhat.com>