From 999c3bc4317a026dac6844c519656afd5b19506a Mon Sep 17 00:00:00 2001
From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
Date: Mon, 11 Mar 2013 18:01:18 -0500
Subject: [PATCH] [pngzop] Added commentary and license info to the new pngzop
 script.

---
 pngzop | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pngzop b/pngzop
index 205f60690..814d88764 100755
--- a/pngzop
+++ b/pngzop
@@ -1,6 +1,17 @@
 #!/bin/sh
 
-# pngzop file.png > file_pz.png 
+# pngzop file.png > file_pz.idat
+
+# For use in the pngzop project
+# Copyright 2013 by Glenn Randers-Pehrson
+# Released under the pngcrush license (equivalent to the libpng license)
+
+# From a PNG file, finds the smallest resulting compressed IDAT
+# data from zopfli compression of filter types 0 through 4 and
+# "adaptive" (f5) filtering.
+
+# To do: replace the IDAT chunks in the source PNG file with the
+# result.
 
 for f in 0 1 2 3 4 5
 do