Package: x2goserver

I had a hard time to track down this issue.

On a minimal ArchLinux installation, every session exited with this error:

Sep 10 17:51:43 systemd-logind[176]: New session 33 of user juergen.
Sep 10 17:51:43 /usr/bin/x2goruncommand[24784]: ERROR: command  failed to execute

The root cause was the missing 'which' package:
This packages is not part of a minimal installation.

Patch enclosed (use bash-internal type command)