[libpng16] Updated copyright year in recently-changed files.
diff --git a/pngpriv.h b/pngpriv.h
index c2a1fa5..652b6b2 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -2,7 +2,7 @@
/* pngpriv.h - private declarations for use inside libpng
*
* For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*