Comment 23 for bug 1800811

Reviewed: https://review.openstack.org/629051
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=c740b542147f7e53cac12c46860bf8228d6ae5f6
Submitter: Zuul
Branch: master

commit c740b542147f7e53cac12c46860bf8228d6ae5f6
Author: Harald Jensås <email address hidden>
Date: Mon Jan 7 22:38:02 2019 +0100

    Remove default role-name from merge network param script

    The merge-new-params-nic-config-script.py previosly had the
    'Controller' role as the default for --role-name. It is not
    obvious that this parameter must be changed when merging
    nic config templates.

    Remove the default and make the argument required. Improves
    UX since user error is less likely.

    Making the mistake of using a Role with too many networks
    is'nt as forgiving since we now only pass parameters for
    the role.networks.

    Related-Bug: #1800811
    Change-Id: Iff9e364db66ad09a30ac10a7814a3c01d50caf58