just a little request
# tunefs
usage: tunefs [-A] [-a enable | disable] [-e maxbpg] [-f avgfilesize]
[-J enable | disable ] [-L volname] [-l enable | disable]
[-m minfree] [-N enable | disable] [-n enable | disable]
[-o space | time] [-p] [-s avgfpdir] special | filesystem
-j is not showing
--Buganini