Add a reference to dir(5) per PR 14291

lib/libc/sys/stat.2

@@ -1,4 +1,4 @@
-.\"	$NetBSD: stat.2,v 1.24 2001/10/23 09:26:59 kleink Exp $
+.\"	$NetBSD: stat.2,v 1.25 2002/02/03 08:05:12 fair Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993, 1994
 .\"	The Regents of the University of California.  All rights reserved.
@@ -147,6 +147,11 @@ The size-related fields of the
 .Fa struct stat
 are as follows:
 .Bl -tag -width XXXst_blksize
+.It st_size
+The size of the file in bytes.
+A directory will be a multiple of the size of the
+.Xr dirent 5
+structure.
 .It st_blksize
 The optimal I/O block size for the file.
 .It st_blocks
@@ -268,6 +273,7 @@ An I/O error occurred while reading from or writing to the file system.
 .Xr chmod 2 ,
 .Xr chown 2 ,
 .Xr utimes 2 ,
+.Xr dir 5 ,
 .Xr symlink 7
 .Sh STANDARDS
 The