[devel] Revise references to zlib/libpng license
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index b258c0a..918d59a 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -6,7 +6,7 @@
# Copyright (C) 1996, 1997 Andreas Dilger
#
# This code is released under the zlib/libpng license.
-# For conditions of distribution and use, see copyright notice, disclaimer,
+# For conditions of distribution and use, see the disclaimer
# and license in png.h
# where "make install" puts libpng.a, libpng14.dylib, png.h and pngconf.h