ansible/changelogs/fragments/command_deliver_promisses.yml

bugfixes:
  - command module, now always returns what we documented as 'returns always'.
  - command module, now all options work in ad-hoc execution.
  - command module, clarify order of remove/creates checks.
  - command module, correctly handles chdir to symlinks.
  - command module, move to standarized messages in 'msg' vs abusing 'stdout'.