[devel] Revise references to zlib-libpng license
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index d0c9598..ae00bab 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -3,7 +3,8 @@
 # Copyright (C) 2007-2008 Glenn Randers-Pehrson
 #
 # This code is released under the zlib-libpng license.
-# For conditions of distribution and use, see copyright notice in png.h
+# For conditions of distribution and use, see copyright notice, disclaimer,
+# and license in png.h
 
 PREFIX?= /usr/local
 LIBDIR=	${PREFIX}/lib