Comment 2 for bug 1642571

Reviewed: https://review.openstack.org/399003
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=55e3d5cf688aa452bb4dcb05ee15fe0566585866
Submitter: Jenkins
Branch: master

commit 55e3d5cf688aa452bb4dcb05ee15fe0566585866
Author: Michael Dovgal <email address hidden>
Date: Thu Nov 17 13:36:13 2016 +0200

    Log detailed attach/detach volumes info

    Change cinder-volume logs level from debug to info to have
    information about volume attach/detach usage.
    Need to change cinder.conf for usage 'resource' variable in log
    messages.

    Change-Id: I32257d8b80f5089d567af6d808e9d6d357dc70ff
    Partial-Bug: #1642571