add HISTORY; ok jmc

src/lib/libc/string/strlcpy.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: strlcpy.3,v 1.17 2005/08/06 03:21:36 jaredy Exp $
+.\" $OpenBSD: strlcpy.3,v 1.18 2005/08/06 03:24:19 jaredy Exp $
 .\"
 .\" Copyright (c) 1998, 2000 Todd C. Miller <Todd.Miller@courtesan.com>
 .\"
@@ -177,3 +177,10 @@ As a matter of fact, the first version of this manual page got it wrong.
 .Xr snprintf 3 ,
 .Xr strncat 3 ,
 .Xr strncpy 3
+.Sh HISTORY
+The
+.Fn strlcpy
+and
+.Fn strlcat
+functions first appeared in
+.Ox 2.4 .