This bug was fixed in the package systemd - 231-9git1
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systemd (231-9git1) yakkety; urgency=medium
* systemctl: Add --wait option to wait until started units terminate again.
This is a prerequisite for using systemd for graphical sessions without
ugly polling.
*
** Also affects: systemd via
https://github.com/systemd/systemd/issues/4157
Importance: Unknown
Status: Unknown
** Changed in: systemd (Ubuntu)
Assignee: (unassigned) => Martin Pitt (pitti)
** Changed in: systemd (Ubuntu)
Importance: Undecided => Medium
** Changed in: