Output of these samples has changed:
> say 'hello-world'.split(/<ws>/).perl;
("", "hello", "-", "world", "")
> say 'hello-world'.split(/<wb>/).perl;
("", "hello", "-", "world", "")
> say 'a-b-c'.split(/<ws>/).perl;
("", "a", "-", "b", "-", "c", "")-- Will "Coke" Coleda
