This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
See L<http://www.perl.com/perl/misc/Artistic.html>
The link is suboptimal because it points to Artistic license only. Correct one is http://dev.perl.org/licenses/ because it shows both licenses: Artistic and GPL.
lib/Swim.pod reads:
The link is suboptimal because it points to Artistic license only. Correct one is http://dev.perl.org/licenses/ because it shows both licenses: Artistic and GPL.
Please replace the link with http://dev.perl.org/licenses/.