add xrefs for getpeername, so other people that look for it can find it.. :)

lib/libc/sys/accept.2

@@ -181,6 +181,7 @@ are present to be accepted.
 .Sh SEE ALSO
 .Xr bind 2 ,
 .Xr connect 2 ,
+.Xr getpeername 2 ,
 .Xr listen 2 ,
 .Xr select 2 ,
 .Xr socket 2

lib/libc/sys/connect.2

@@ -159,6 +159,7 @@ Too many symbolic links were encountered in translating the pathname.
 .El
 .Sh SEE ALSO
 .Xr accept 2 ,
+.Xr getpeername 2 ,
 .Xr getsockname 2 ,
 .Xr select 2 ,
 .Xr socket 2

lib/libc/sys/getsockname.2

@@ -99,6 +99,7 @@ process address space.
 .El
 .Sh SEE ALSO
 .Xr bind 2 ,
+.Xr getpeername 2 ,
 .Xr socket 2
 .Sh BUGS
 Names bound to sockets in the UNIX domain are inaccessible;

lib/libc/sys/socket.2

@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     From: @(#)socket.2	8.1 (Berkeley) 6/4/93
-.\"	$Id$
+.\"	$Id: socket.2,v 1.6 1997/02/22 15:04:28 peter Exp $
 .\"
 .Dd February 15, 1995
 .Dt SOCKET 2
@@ -241,6 +241,7 @@ The socket cannot be created until sufficient resources are freed.
 .Xr accept 2 ,
 .Xr bind 2 ,
 .Xr connect 2 ,
+.Xr getpeername 2 ,
 .Xr getsockname 2 ,
 .Xr getsockopt 2 ,
 .Xr ioctl 2 ,