Lennart Poettering
46b073298f
Previously, reading through systemd.exec(5) one might get the idea that XDG_SEAT and XDG_VTNR are part of the service management logic, but they are not, they are only set if pam_systemd is part of a PAM stack an pam_systemd is used. Hence, let's drop these env vars from the list of env vars, and instead add a paragraph after the list mentioning that pam_systemd might add more systemd-specific env vars if included in the PAM stack for a service that uses PAMName=.
systemd - System and Service Manager
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