Comment 2 for bug 1821970

Reviewed: https://review.openstack.org/648232
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=89cbba272daca16d87429db6400848b911dbfe2f
Submitter: Zuul
Branch: master

commit 89cbba272daca16d87429db6400848b911dbfe2f
Author: Alex Schultz <email address hidden>
Date: Wed Mar 27 14:09:53 2019 -0600

    Stop dumb-init usage

    The dumb-init is actually installed by fetching it from github and
    putting it in the base image. We don't actually want that for our usage.
    Additionally a new block that overrode the entrypoint in the mariadb
    container which now causes the mysql container to fail if dumb-init is
    not installed.

    Change-Id: I2228a0da506daf207ea402d3e5a0f156b629862a
    Closes-Bug: #1821970