From NetBSD (christos) [fixed typo introduced in comment]:
authormillert <millert@openbsd.org>
Fri, 7 Mar 1997 02:15:18 +0000 (02:15 +0000)
committermillert <millert@openbsd.org>
Fri, 7 Mar 1997 02:15:18 +0000 (02:15 +0000)
commitb77d6fc782a099cca49c4e6fc8fb38dfd910e951
tree7f9e4b688206a05bc7a241b5706d19995907d948
parent0609fdde26e65bfcb71834175b163b71bf2884c7
From NetBSD (christos) [fixed typo introduced in comment]:
    If ``who'' was not specified, set the appropriate bits as the manual
    page states.  ``chmod +s foo''  and ``chmod +t dir'' now work.
lib/libc/gen/setmode.c