Add "SEE ALSO" cross references.

rwho was changed so a host is considered "down" if it hasn't sent a
response in 11 minutes (it used to be 5) but the manpage was never
updated.

usr.bin/rwho/rwho.1

@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)rwho.1	6.7 (Berkeley) 4/23/91
-.\"	$Id: rwho.1,v 1.2 1993/08/01 07:28:58 mycroft Exp $
+.\"	$Id: rwho.1,v 1.3 1993/09/16 01:50:33 jtc Exp $
 .\"
 .Dd April 23, 1991
 .Dt RWHO 1
@@ -48,7 +48,7 @@ command produces output similar to
 .Xr who ,
 but for all machines on the local network.
 If no report has been
-received from a machine for 5 minutes then
+received from a machine for 11 minutes then
 .Nm rwho
 assumes the machine is down, and does not report users last known
 to be logged into that machine.
@@ -63,12 +63,16 @@ unless the
 .Fl a
 flag is given.
 .Sh FILES
-.Bl -tag -width /var/spool/rwho/rhowd.* -compact
-.It Pa /var/spool/rwho/whod.*
+.Bl -tag -width /var/rwho/rhowd.* -compact
+.It Pa /var/rwho/whod.*
 information about other machines
 .El
 .Sh SEE ALSO
+.Xr finger 1 ,
+.Xr rup 1 ,
 .Xr ruptime 1 ,
+.Xr rusers 1 ,
+.Xr who 1 ,
 .Xr rwhod 8
 .Sh HISTORY
 The