$NetBSD: patch-al,v 1.1 1999/01/10 23:52:16 tron Exp $

--- pnm/pnmarith.1.orig	Mon Oct  4 10:11:34 1993
+++ pnm/pnmarith.1	Sun Jan 10 23:48:40 1999
@@ -4,7 +4,7 @@
 pnmarith - perform arithmetic on two portable anymaps
 .SH SYNOPSIS
 .B pnmarith
-.BR -add | -subtract | -multiply | -difference
+.BR -add | -subtract | -multiply | -difference | -minimum | -maximum.
 .I pnmfile1 pnmfile2
 .SH DESCRIPTION
 Reads two portable anymaps as input.