Change some URLs from author dirs to dist dirs.
The example in the porter's handbook didn't have the trailing slash;
mea culpa for not having caught that when it went in.
designed by Vincent Rijmen, Joan Daemen, Bart Preneel, Antoon
Bosselaers, and Erik De Win.
WWW: http://search.cpan.org/dist/Crypt-Shark
PR: ports/90699
Submitted by: Gabor Kovesdan
