/usr/share/debmake/extra3/package.cron.hourly.ex is in debmake 4.2.9-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | #!/bin/sh
# Hourly cron jobs shell script for the @PACKAGE@ package
# See dh_installcron(1).
true
|