Fix delay in windows functional tests
Fix delay in windows functional tests

The functional tests actually weren't sleeping before. The `ping`
behavior is unintuitive and requires `-n 2` for a 1 second delay.

Medium/ClusterRunner,josephharrington/ClusterRunner,nickzuber/ClusterRunner,josephharrington/ClusterRunner,box/ClusterRunner,box/ClusterRunner,nickzuber/ClusterRunner,Medium/ClusterRunner