From: utzoo!henry
Newsgroups: hacknews
Title: du(1) interface improved 
Article-I.D.: utzoo.2734
Posted: Wed Jan  5 21:54:10 1983
Received: Wed Jan  5 21:54:10 1983

Fixed du(1) to use getopt(3) for its option cracking and, as a side
effect thereof, to produce much more reasonable messages in the event
of usage errors.  Problem reported by Laura.