Is there anyway to customize the error msg for a error code?

[speedfirst]

For example, 403's msg is "Forbidden". If there is someway to append
some customized msg to this HTTP response status line like:

HTTP/1.1 403 Forbiden, no id provided
Date: xxxx
Content-Type: text/html
...

Thanks.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,208911,208911#msg-208911