Description of problem:
realmdomains help does show list of available commands:

# ipa help realmdomains
Realm domains

Manage the list of domains associated with IPA realm.

EXAMPLES:

 Display the current list of realm domains:
   ipa realmdomains-show

 Replace the list of realm domains:
   ipa realmdomains-mod --domain=example.com
   ipa realmdomains-mod --domain={example1.com,example2.com,example3.com}

 Add a domain to the list of realm domains:
   ipa realmdomains-mod --add-domain=newdomain.com

 Delete a domain from the list of realm domains:
   ipa realmdomains-mod --del-domain=olddomain.com

Topic commands:
  realmdomains-mod   Modify realm domains.
  realmdomains-show  Display the list of realm domains.

To get command help, use:
  ipa <command> --help

<<< Missing list of commands

Other commands seem to show them:

# ipa help user
...
 Delete a user:
   ipa user-del tuser1

Topic commands:
  user-add      Add a new user.
  user-del      Delete a user.
  user-disable  Disable a user account.

Version-Release number of selected component (if applicable):
ipa-client-3.3.3-5.el7.x86_64


How reproducible: always

Steps to Reproduce:
1. Install IPA server
2. # ipa help realmdomains

Actual results:
No list of commands

Expected results:
List of commands available

Additional info: