env: illegal option -- 0

[toddkaufmann]

This occurs when the remote host is OSX, and maybe other flavors of BSD, which have env which do not support the -0 flag.

This seems to confuse jupyter about the cell's status (note [*]like it's still running)
as well as return code, though it does execute subsequent cells.

One fix (using gnu's env from brew) is:

1. brew install coreutils
2. echo PATH=/opt/homebrew/opt/coreutils/libexec/gnubin:/usr/bin:/bin:/usr/sbin:/sbin . ~/.ssh/environment
3. Uncomment the line PermitUserEnvironment yes from /etc/ssh/sshd_config,
   or sshd will ignore this file.
4. execute %login cell in your notebook again to get a new sshd connection and realize the new environment changes.

After this all is fine:

Hopes this helps anyone else encountering the problem.