* Build-Depend on debhelper (>= 9.20160709) | dh-systemd to keep
compatibility with Ubuntu 16.04, which does not yet have that
of debhelper.
+ * Revert: d/rules: use new dh option names - Ubuntu 16.04 does not
+ have a debhelper that supports the new option, so use the old
+ ones for now.
[ Christian Ehrhardt ]
* d/rules: use new dh option names