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"