task: allow `dcos task exec` to work with pods. (#916)
task: allow `dcos task exec` to work with pods. (#916)


dcos/dcos-cli,mesosphere/dcos-cli,mesosphere/dcos-cli,dcos/dcos-cli,kensipe/dcos-cli,dcos/dcos-cli,kensipe/dcos-cli,kensipe/dcos-cli,dcos/dcos-cli,mesosphere/dcos-cli,dcos/dcos-cli,kensipe/dcos-cli,kensipe/dcos-cli