Remove vinum_perror.
Modify 'list' brief printout to fit in 80 columns.
Modify 'ls' brief printout to show the drive to which the subdisk
before instead of the plex offset, which is usually less interesting.
The verbose printout remains unchanged.
Use userland expurgated versions of kernel structures, since that's
what the ioctls return now.
Move checkupdates here to simplify header file mess.
5814a0b1e9