bug#22175: /etc/environment not honored by lshd

[Ludovic Courtès]

Hello!

Somehow /etc/environment isn’t honored when logging in via SSH to an
lshd server running on GuixSD, despite the fact that /etc/pam.d/lshd has
this:

--8<---------------cut here---------------start------------->8---
account required pam_unix.so 
auth required pam_unix.so 
password required pam_unix.so sha512 shadow
session required pam_env.so 
session required pam_unix.so 
--8<---------------cut here---------------end--------------->8---

Ludo’.