Comment # 1 on bug 1177605 from Thorsten Kukuk

I don't think that pam_snapper should be added to a common file and thus
pam-config at all, since this would also mean that everytime cron or something
similar is running, a snapshot is created, too.

pam_snapper should be added to single login services where it makes sense, but
this is outside the scope of pam-config.