Ensure native standard error is captured in Java

[lptr]

There are different native printouts happening when errors happen. We should make sure it gets reflected in what Java captures of the process' output.

Example problem to capture: #116

2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 52 (/private/var/folders/y8/lns4s7jn3jldwky0nm3dmx9m0000gn/T; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 47 (/private/var/folders/y8/lns4s7jn3jldwky0nm3dmx9m0000gn; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 51 (/private/var/folders/y8; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 53 (/private/var/folders; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 54 (/private/var; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 55 (/private; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 54 (/private/var/folders; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 47 (/private/var; Bad file descriptor)
2020-02-26 08:46 java[94718] (FSEvents.framework) process_dir_events: watch_all_parents: error trying to add kqueue for fd 52 (/private; Bad file descriptor)

[lptr]

It doesn't sound likely that we'll get to this.