How to maintain end of file comment?

[eluser]kenjis[/eluser]
Hi, guys!

CodeIgniter file must have a comment block to mark the end of file and it's location
according to http://ellislab.com/codeigniter/user-gui...losing_tag

Like this:

Code:

/* End of file welcome.php */
/* Location: ./application/controllers/welcome.php */

I sometimes forget to update the comment.
How do you maintain the comment?