Cleanup VOffline log message for non-DAFS

Commit fd592c7674d4aa44dda90998b54d7b56947f6ed8 fixed the 'Volume X
(Y) is now offline' message for DAFS, but the same problem persists
for non-DAFS. Fix the non-DAFS case.

Reviewed-on: http://gerrit.openafs.org/3213
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit 138ac6577eab40e25a796f7c18f3c39add000ed2)

Change-Id: I3e0c53d93bcaad43a9fd7b20ccf32bc216601455
Reviewed-on: http://gerrit.openafs.org/9412
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>