[perl6/specs] 081817: Removed superfluous "a"

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: 081817f6324e2e465ece37e3be9ada109a7de463
      
https://github.com/perl6/specs/commit/081817f6324e2e465ece37e3be9ada109a7de463
  Author: Elizabeth Mattijsen <l...@dijkmat.nl>
  Date:   2013-06-19 (Wed, 19 Jun 2013)

  Changed paths:
    M S06-routines.pod

  Log Message:
  -----------
  Removed superfluous "a"