Sets default dbus send_destination policy
This issue was originally arisen as part of the review process for kde-inotify-survey for Fedora: https://bugzilla.redhat.com/show_bug.cgi?id=2173178
Building any package using this stub would result in a linting error (rpmlint) stating:
dbus-policy-missing-allow: "Every dbus config normally needs a line of the form or similar. If that is missing, the service will not work with a dbus that uses deny as default policy"
This MR fixes that error.