copyediting for Usenix manuals
4.4BSD snapshot (revision 8.1); add 1993 to copyright
macro and text revision (-mdoc version 3)
rework the password subsystem
new copyright notice
shadow passwords, setpassent, pretty major reworking
rework get{gr,pw,fs}ent to all be about the same;fix some obvious problems, document that set{gr,pw,fs}ent closes anyopen files
note use of ndbm
update return values for endpwent and setpwent
4.3BSD beta release manual page
manual page distributed with 4.2BSD
manual page distributed with 4.1BSD