* figure out a nice way how we can let the admin know what child/sibling unit causes cgroup membership for a specific unit
-* add a kernel command line option to enable the debug shell
-
* journalctl: add the ability to look for the most recent process of a binary. journalctl /usr/bin/X11 --pid=-1 or so...
* set NOTIFY_SOCKET also for control processes
* systemctl delete x.snapshot leaves no trace in logs (at least at default level).
-* make the coredump collector tool move itself into the user's cgroup
- so that the coredump is properly written to the user's own journal
- file.
-
* seems that when we follow symlinks to units we prefer the symlink
destination path over /etc and /usr. We should not do that. Instead
/etc should always override /run+/usr and also any symlink
* allow port=0 in .socket units
-* support systemd.mask= on the kernel command line.
-
* recreate systemd's D-Bus private socket file on SIGUSR2
* Support --test based on current system state