Updated openstack/openstack
Project: openstack/keystone  11a32e8df1e73bbc31a033495595271b50fa0cfe
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Sync log_handler module from Oslo

Ibf28ba17f Remove the notifier and its dependencies from log.py

Move the code related to the publish error handler out of the
log module so its easier for other projects to consume it

Closes-bug: #1240349
Change-Id: Ib97bc01b60d7ea6c2e6bc3f0229deffbadbf18cc