Add a history section. From OpenBSD.

lib/libc/sys/lseek.2

@@ -1,4 +1,4 @@
-.\"	$NetBSD: lseek.2,v 1.22 2004/05/13 10:20:58 wiz Exp $
+.\"	$NetBSD: lseek.2,v 1.23 2010/04/03 15:42:22 jruoho Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)lseek.2	8.3 (Berkeley) 4/19/94
 .\"
-.Dd April 19, 1994
+.Dd April 3, 2010
 .Dt LSEEK 2
 .Os
 .Sh NAME
@@ -130,6 +130,18 @@ The
 .Fn lseek
 function conforms to
 .St -p1003.1-90 .
+.Sh HISTORY
+A
+.Fn seek
+function appeared in
+.At v2 ,
+later renamed into
+.Fn lseek
+for
+.Dq long seek
+due to a larger
+.Fa offset
+argument type.
 .Sh BUGS
 This document's use of
 .Fa whence