perl6/book — pull request #82 by usev6 (2014-12-07 22:02:17+00:00)
Title: Fix example in 4.8 Unpacking

Discovered by 宋文泰 in https://rt.perl.org/Ticket/Display.html?id=122917

Also cap junction as explained in http://perl6advent.wordpress.com/2014/12/03/day-3-cap-your-junctions/
masak++