dbus_pending_call_unref  456 lib/services/dbus.c         dbus_pending_call_unref(pending);
dbus_pending_call_unref  462 lib/services/services.c         dbus_pending_call_unref(op->opaque->pending);
dbus_pending_call_unref  209 lib/services/systemd.c         dbus_pending_call_unref(pending);