don't trigger a debug-message for a "error on connection" if we notified the client via a ERR-packet

Author: jan.kneschke@oracle.com

src/network-mysqld.c

@@ -2019,7 +2019,7 @@ void network_mysqld_con_handle(int event_fd, short events, void *user_data) {
 break;
 }
 
-con->state = CON_STATE_ERROR;
+con->state = CON_STATE_CLOSE_CLIENT;
 
 break;
 }