dir: make dtest buildable again
Commit
7fe4125fe3435092b75ed29b884d8d3c2d1a2cad 'dir/vol: Die() really
does' overlooked src/dir/test/dtest.c, breaking its build.
Fix the signature of Die() and the makefile so dtest can be built.
In addition, change the Makefile so it is always built.
Change-Id: I18129acbfdaa770987c7f0b8055ff593f776e518
Reviewed-on: https://gerrit.openafs.org/13794
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Cheyenne Wills <cwills@sinenomine.net>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: BuildBot <buildbot@rampaginggeek.com>