dinitctl: wait for service state via v5 or original service event

Respond to both SERVICEEVENT5 (protocol v5) or original SERVICEEVENT
when waiting for a service to reach a started/stopped state. The v5 info
packet should arrive first (assuming new dinit daemon) and has more
information, so will display better status info.

src/dinitctl.cc

@@ -917,7 +917,7 @@ static int wait_service_state(int socknum, cpbuffer_t &rbuffer, handle_t handle,
             unsigned pktlen = (unsigned char) rbuffer[1];
             fill_buffer_to(rbuffer, socknum, pktlen);
 
-            if (rbuffer[0] == (char)cp_info::SERVICEEVENT) {
+            if (value((cp_info)rbuffer[0]).is_in(cp_info::SERVICEEVENT, cp_info::SERVICEEVENT5)) {
                 int ret = process_service_event(rbuffer, pktlen, handle, service_name, do_stop, verbose);
                 if (ret >= 0) {
                     return ret;