bin/start-cluster.sh won't start jobmanager on master machine

[Yesheng Ma]

Hi all,

​​When I execute bin/start-cluster.sh on the master machine, actually the
command `nohup /bin/bash -l bin/jobmanager.sh start cluster ...` is
exexuted, which does not open the job manager properly.

I think there might be something wrong with the `-l` argument, since when I
use the `bin/jobmanager.sh start` command, everything is fine. Kindly point
out if I've done any configuration wrong. Thanks!

Best,
Yesheng