chenxiajian_How can I modify the declaration in the beginning of each file?

Hi
How can I modify the declaration in the beginning of each file or maintain the current status?
Such as following when I create a new file or modify the old file?

in the hyphenator project, I have wrote a lot of codes following the "SpellChecker"..
modify the "enchant.h" and create my own function class:
EnchantHyphenator
Hyphenator
HyphenatorManager
===================

and I have a question about the declaration in the beginning of each file,should I modify it or maintain the current status?
Thanks

/* AbiSuite
 * Copyright (C) 2001 Dom Lachowicz <cinamod@hotmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 */
Received on Wed May 11 20:18:28 2011