Comment 4 for bug 1531070

The Xenial version doesn't seem to declare "Replaces: libplymouth2":

| ubuntu@hloeung:~/plymouth-0.9.2$ grep -i Replaces debian/control
| Replaces: plymouth-drm (<< 0.9.0-6~), plymouth-themes (<< 0.9.0-8~)
| Replaces: plymouth (<< 0.9.2-1~)
| Replaces: plymouth-dev (<< 0.9.2-1~)
| Replaces:
| ubuntu@hloeung:~/plymouth-0.9.2$ head debian/changelog
| plymouth (0.9.2-3ubuntu8) xenial; urgency=medium
|
| * debian/local/plymouth.hook:
| - handle having the minimum dependency packages installed (no font)
| when setting either no graphical theme or ubuntu-text one as default.
|
| -- Didier Roche <email address hidden> Wed, 16 Dec 2015 15:42:00 +0100
|

The Wily version seems to have it, http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/wily/plymouth/wily/view/head:/debian/control#L43