Upgrade libpng to 1.2.44 for security fixes.

Change-Id: Iae257ca6ea7031a99f38e9de196d71ef8b94f9aa
diff --git a/scripts/makefile.atari b/scripts/makefile.atari
index 944337d..0e1ca72 100644
--- a/scripts/makefile.atari
+++ b/scripts/makefile.atari
@@ -1,11 +1,11 @@
 # makefile for libpng
 # Copyright (C) 2002 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-
+#
 # This code is released under the libpng license.
 # For conditions of distribution and use, see the disclaimer
 # and license in png.h
-
+#
 # Modified for LC56/ATARI assumes libz.lib is in same dir and uses default
 # rules for library management
 #