Shell interpreter can't render output that uses \r\n line separators

Basically, if the command you run has output separated with \r\n which is not uncommon, the UI will somehow miss it or print rubish.

To test, create a simple script like this:

#!/bin/bash
echo -e "hey\r\n"
echo good?

Running this in Zeppelin using `%sh /path/script` will render:

good?

i.e. the hey part is not printed somehow. If you run this instead it works:

%sh /path/script | tr '\r' ' '