Comment 24 for bug 1803451

Reviewed: https://review.openstack.org/618126
Committed: https://git.openstack.org/cgit/openstack/charm-barbican/commit/?id=0b301410e6001e8751f2994b58e5eefa8f7d66b3
Submitter: Zuul
Branch: master

commit 0b301410e6001e8751f2994b58e5eefa8f7d66b3
Author: James Page <email address hidden>
Date: Thu Nov 15 11:13:42 2018 +0000

    Deal with py2-py3 payload switch during upgrade-charm

    Switch to using the default upgrade-charm handler as provided
    by charms.openstack and associated layers.

    This ensures that the payload execution switch from py2->py3
    at OpenStack Rocky is implemented during the charm upgrade
    process.

    Change-Id: Id2ab577f65c1937bcbbc06a704a8385655de3c57
    Closes-Bug: 1803451