A
Asterbing
If you read the documentation that the author of the CGI module
included with its distribution, you will find:
AUTHOR INFORMATION
Copyright 1995-1998, Lincoln D. Stein. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
"Modification" is not "copy".
When you "modify", you let the orignal copyright and add something
telling you've changed something as, for example, "TheProg v1.0 MODIFIED
(c) John Doe, 2004 with modification by Joe Smith on 1th of April 2005
(all marked #JD_MOD)"
When you "copy", you extract a code part from source to your own one and
the, by that way, forget the original author... Unless if you add (do
you ?) something like a greeting like : "Thanks to John Doe for his
prog.cgi on which my upload code is based"
So, the formula "you can redistribute it and/or modify it under the same
terms as Perl itself" doesn't talk about copy, but modificaton only !