Comment 8 for bug 1822550

Reviewed: https://review.opendev.org/649637
Committed: https://git.openstack.org/cgit/x/cloudbase-init/commit/?id=d548fe93dd645b0d0417de132e8a8f83e3dad91f
Submitter: Zuul
Branch: master

commit d548fe93dd645b0d0417de132e8a8f83e3dad91f
Author: liyubo <email address hidden>
Date: Wed Apr 3 22:43:54 2019 +0800

    config_drive: log incorrect drive label

    When config_drive label is not 'config-2', there are no
    logs to help the user debug the issue.

    This commit adds logging for existent drive label
    and the expected drive label.

    Closes-Bug: #1822550

    Change-Id: I350911e4a9e69b8081363a4303a2ec5065711195