message: fix(multicast.spec): typo fix
  results1 repeated twice. changed one to results2 to check both
  results1 and results2
diff: @@ -553,7 +553,7 @@ describe('Observable.prototype.multicast', () => {
  connectable.connect();
  expect(results1).to.deep.equal([1, 2, 3, 4]);
  - expect(results1).to.deep.equal([1, 2, 3, 4]);
  + expect(results2).to.deep.equal([1, 2, 3, 4]);
  expect(subscriptions).to.equal(1);
  done();
  });
  