[perl6/specs] 80eaa3: close a channel with .close

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: 80eaa3c2aea41bef8fb8c90b059f4a469231cd7f
      
https://github.com/perl6/specs/commit/80eaa3c2aea41bef8fb8c90b059f4a469231cd7f
  Author: Larry Wall <la...@wall.org>
  Date:   2013-11-22 (Fri, 22 Nov 2013)

  Changed paths:
    M S17-concurrency.pod

  Log Message:
  -----------
  close a channel with .close