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ARROW-3736: [CI/Docker] Ninja test in `docker-compose run cpp` hangs

Test it with the following commands:

```bash
docker-compose build cpp
docker-compose run cpp
```

Author: Krisztián Szűcs <szucs.krisztian@gmail.com>

Closes #2939 from kszucs/ARROW-3736 and squashes the following commits:

e796259e <Krisztián Szűcs> call ctest directly instead of ninja test; fix hdfs integration test runner script