if (r < 0)
return r;
if (!machine)
- return sd_bus_error_setf(error, BUS_ERROR_NO_MACHINE_FOR_PID, "PID %lu does not belong to any known machine", (unsigned long) pid);
+ return sd_bus_error_setf(error, BUS_ERROR_NO_MACHINE_FOR_PID, "PID "PID_FMT" does not belong to any known machine", pid);
p = machine_bus_path(machine);
if (!p)