For clarity and consistency, refer to ".Bx 4.0" rather than ".Bx 4".

Also, mention /usr/ucb/man because /usr/bin/man did not provide -f in 4.0BSD.

diff --git a/usr.bin/mandoc/man.1 b/usr.bin/mandoc/man.1
index eb0fae7..0cf4f9a 100644 (file)
--- a/usr.bin/mandoc/man.1
+++ b/usr.bin/mandoc/man.1
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: man.1,v 1.39 2020/07/20 14:52:12 schwarze Exp $
+.\"    $OpenBSD: man.1,v 1.40 2022/08/04 11:31:18 schwarze Exp $
 .\"
 .\" Copyright (c) 1989, 1990, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -31,7 +31,7 @@
 .\"
 .\"     @(#)man.1      8.2 (Berkeley) 1/2/94
 .\"
-.Dd $Mdocdate: July 20 2020 $
+.Dd $Mdocdate: August 4 2022 $
 .Dt MAN 1
 .Os
 .Sh NAME
@@ -391,7 +391,9 @@ option first appeared in
 and
 .Fl k
 in
-.Bx 4 ;
+.Pa /usr/usb/man
+in
+.Bx 4.0 ;
 .Fl M
 in
 .Bx 4.3 ;