Comment 4 for bug 1884919

Reviewed: https://review.opendev.org/739992
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=69b8b7a49fd682bb15ff84fd0b322dc6c21b5007
Submitter: Zuul
Branch: master

commit 69b8b7a49fd682bb15ff84fd0b322dc6c21b5007
Author: Radosław Piliszek <email address hidden>
Date: Wed Jul 8 15:52:11 2020 +0200

    Fix ceilometer-upgrade params

    It seems [1] has introduced a slight regression in that it tries
    by default to pass an empty string to ceilometer-upgrade which
    makes it fail:

    ceilometer-upgrade: error: unrecognized arguments:

    (note there is nothing more on that line)

    This patch fixes that by allowing the params to be of any number,
    including zero.

    Backport to Ussuri.

    [1] 3d587409ee068843cfa28710f09f65af48b69367

    Change-Id: I989a1dd30d1656b5c1fda7a46abbf5f265fbb72c
    Closes-Bug: #1884919