screen missing upstart script in trusty

In Ubuntu Precise (12.04) LTS ChangeLog (went out as part of 10.10 it seems):

---
screen (4.0.3-14ubuntu2) maverick; urgency=low

  * debian/screen-cleanup.upstart, debian/init: convert screen to an
    upstart script to fix some bugs where /var/run is not mounted when
    screen-cleanup runs, LP: #574773
---

However this change did not get ported into Ubuntu Trusty (14.04) LTS.

http://changelogs.ubuntu.com/changelogs/pool/main/s/screen/screen_4.1.0~20120320gitdb59704-9/changelog

There are upstart services that depend on this, I don't understand why this change was mysteriously "dropped".