scrubber and other utils do not read 'default_log_levels'

[James Li]

Glance version: 2013.1

scrubber and other utils call config.setup_logging(), which does not read the 'default_log_levels' config option. That is not the same as log.setup(), which is called in glance-api and glance-registry.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/24038

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/24038
Committed: http://github.com/openstack/glance/commit/1d456e546084b03cdfbf0166b850c9dcef60d42a
Submitter: Jenkins
Branch: master

commit 1d456e546084b03cdfbf0166b850c9dcef60d42a
Author: James Li <email address hidden>
Date: Mon Mar 11 03:40:27 2013 +0000

    Fix scrubber and other utils to use log.setup().

    scrubber and other utils call config.setup_logging(),
    which does not read the 'default_log_levels' config option.
    Fix this problem by calling log.setup(), just like what
    glance-api and glance-registry do.

    Per John Bresnahan's comment, made the change to check
    the existence of log conf file in oslo-incubator code.
    Refer to https://review.openstack.org/#/c/24230/

    Change-Id: I4a53d74c4cd8274a3174b246207a6ed76c5e31c6
    Fixes: bug #1153432