Unit Tests

- All tests (I hope) now properly remove completed.data on exit, which
  should prevent certain non-deterministic tinderbox results caused by
  residual data.

src/tests/bug.hasnt.t

@@ -40,7 +40,6 @@ if (open my $fh, '>', 'hasnt.rc')
 }
 
 # 1
-diag ("Initialization taskes 6 seconds");
 qx{../task rc:hasnt.rc add foo};
 
 # 2