distro/deb: rename knot.tmpfile -> knot.tmpfiles
do as debhelper says:
dh_installtmpfiles: warning: The name debian/knot.tmpfile is deprecated;
please use debian/knot.tmpfiles instead
dh_installtmpfiles: warning: Possible fix:
mv -f "debian/knot.tmpfile" "debian/knot.tmpfiles"
Edited by Jakub Ružička