update fssync-debug to handle the VOL_LOCKED flag

update fssync-debug to handle the VOL_LOCKED flag

Allow fssync-debug to dump the VOL_LOCKED flag, rather than the
current behavior of printing absolutely nothing when this flag
is asserted.  In addition, increase the flag buffer size since
it turns out we would truncate if all nine flags were asserted
at once.

Reviewed-on: http://gerrit.openafs.org/2971
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>
(cherry picked from commit 198447ee71ca6510b760141395af5002daab2424)
Change-Id: Ia0ef7444577a8fb6480302a080397ee8674245cd
Reviewed-on: http://gerrit.openafs.org/3063
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>