fixes:
  - |
      Starting with this release the output of
      commands ``ironic help node-create`` and
      ``ironic help port-create`` will show which
      arguments are required
fixes:
  - |
      Where applicable, help for commands will output the required
      arguments in a separate section from the optional arguments.
      For example, the commands ``ironic help node-create`` and
      ``ironic help port-create``.

Update release note for fix to required args
Update release note for fix to required args

Help for ironic commands was changed to show any required arguments
in a different section from the optional arguments in
b0641b1d996e78d6f771e3c635d684c27988bf37.

The release note is updated to clarify that this change would
be for any command, even though only two are affected by it now.

Change-Id: I9a69b3762bf9d08985d512f7ddf806e0d0d24929
