Comment 24 for bug 1750656

Reviewed: https://review.openstack.org/547074
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-galera_server/commit/?id=684601b9af402de1e1b0301e2f99353860fcbce2
Submitter: Zuul
Branch: stable/newton

commit 684601b9af402de1e1b0301e2f99353860fcbce2
Author: git-harry <email address hidden>
Date: Thu Feb 22 17:14:41 2018 +0000

    Fix Apt cache update due to adding Galera repo

    Registering the same variable when adding the Galera and Percona
    repositories means that the cache is not updated if the Galera
    repository is added but the Percona one isn't. This change gives the
    variables separate names to ensure the cache update happens when
    required.

    Change-Id: Ie754888e2ee97e7455ae1f7328afde0e9a6cb25e
    Partial-bug: 1750656