message: Fix a typo in virtual_scheduler_test.
diff: @@ -2988,7 +2988,7 @@ TEST_F(VirtualSchedulerTest, AddMergeSwitch) {
  // Run the scheduler. The current VirtualScheduler, w/o annotation, triggers
  // both outputs of Switch; then Merge (as long as one input is ready, it's z
  // is ready, if we just use num_inputs_ready counter, the final Add becomes
  - // ready. possible to skipt scheduling z. (Need to use CompositeNodeManager
  + // ready. possible to skip scheduling z. (Need to use CompositeNodeManager
  // to test this case).
  auto ops_executed = RunScheduler("");
  