getgroups now takes gid_t's, they are 32-bits
4.4BSD snapshot (revision 8.1); add 1993 to copyright
man page macro and text revisions (-mdoc version 3)
new copyright notice
add Berkeley specific copyright notice
initgroups is 3 now, not 3X
mention gid_t
Improved english
4.3BSD beta release manual page
manual page first distributed with 4.2BSD