change wait to happen before broadcast if we need to throttle

clusterd

@@ -369,8 +369,8 @@ sub push_amd_tar {
 		my $data;
 		defined $fh->sysread($data,1024) or return warn "$filename: $!\n";
 		# warn "send bytes $pos to ",$pos+length($data),"\n";
+		++$i % $BC_RATE or sleep 1;
 		udp_broadcast_message($donald_s,'amdtardata',$st,$pos,$data,$digest);
-		++$i % $BC_RATE or  sleep 1;	
 	}
 }