Translations: add LC to all LOG.critical messages

Update all instance of this in the code.

Patch https://review.openstack.org/#/c/105675/ deals with the
other case.

TrivialFix

Change-Id: I31e2a18d94bb4d8a88d99669b31181a1dea7ad05
Merge "Translations: add LC to all LOG.critical messages"
Code change for nova support cinder client v2

Use v2 volume endpoint to attach/detach volume would be failed,
due to nova not supporting cinder client v2 yet. This patch is for
nova support cinder client v2.

Implements bp support-cinderclient-v2
Closes-Bug: #1215772
Co-Authored-By: Mike Perez <thingee@gmail.com>
Co-Authored-By: Yaguang Tang <yaguang.tang@canonical.com>

Change-Id: Id8abbbb4d9b0c8c49ab51fc3d958ef0d487467f8