Comment 6 for bug 1842460

Reviewed: https://review.opendev.org/681010
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=ba332d42d47c09d033decab33953b9d4ca9b3ed8
Submitter: Zuul
Branch: stable/stein

commit ba332d42d47c09d033decab33953b9d4ca9b3ed8
Author: Doug Szumski <email address hidden>
Date: Tue Sep 3 17:42:19 2019 +0100

    Fix Nova cell search

    The output from `nova-manage cell_v2 list_cells --verbose` contains
    an extra column, stating whether the cell is enabled or not. This means
    that the regex never matches, so existing_cells is always empty.

    This fix updates the regex by adding a match group for this field which
    may be used in a later change.

    Unfortuately the CLI doesn't output in JSON format, which would make
    this a lot less messy.

    Closes-Bug: #1842460
    Change-Id: Ib6400b33785f3ef674bffc9329feb3e33bd3f9a3
    (cherry picked from commit 7b636033ee5e40ba90bce1fa95fe5432e344acfc)