[DIAGNOSTICS][DCOS-48058] Download task logs into "task" directory. (#2925)
[DIAGNOSTICS][DCOS-48058] Download task logs into "task" directory. (#2925)

And executor logs into "executor" directory.
mesosphere/dcos-commons,mesosphere/dcos-commons,mesosphere/dcos-commons,mesosphere/dcos-commons,mesosphere/dcos-commons