[perl6/specs] f603f9: fix typo

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: f603f96b38e2b5cff0edffcc990def49f79e35e8
      
https://github.com/perl6/specs/commit/f603f96b38e2b5cff0edffcc990def49f79e35e8
  Author: Helmut Wollmersdorfer <hel...@wollmersdorfer.at>
  Date:   2014-09-18 (Thu, 18 Sep 2014)

  Changed paths:
    M S15-unicode.pod

  Log Message:
  -----------
  fix typo