If /etc/ipa/ipa.conf file is missing and the DNS is down, the ipa-* commands can't even show help. Also, the --help option doesn't show options "--realm", "--server" and "--domain". Additionally, these options don't support the standard --realm=foo syntax.
master: a9e8a72059ca5a6db13a9835d20f68dd16ce9a7a
Bug Verified: First part: if the ipa.conf is missing, help can still be displayed. Second part: the --help option now shows for add/mod/del/find: --realm=REALM Override default IPA realm --server=SERVER Override default IPA server --domain=DOMAIN Override default IPA DNS domain