Can you help me with a question that I cannot seem to find an answer
to. If you go to the Ruby site, you have the license agreement
(http://www.ruby-lang.org/en/LICENSE.txt). Note the following, first
paragraph.

Ruby is copyrighted free software by Yukihiro Matsumoto
<m@netlab.co.jp>. You can redistribute it and/or modify it under
either the terms of the GPL (see COPYING.txt file), or the conditions
below:

In that text, it references a secondary file (see COPYING.txt file). Do
any of you know where that file is located or where it contains?

Thanks for your help.

(a lucky guess)

It's also in the source tar ball.