message: core: fix comment
diff: @@ -75,7 +75,7 @@ public:
  * To accept only local connections of the machine, use 127.0.0.1.
  * For any incoming connections, use 0.0.0.0.
  *
  - * @param local_ip The local UDP ip to listen to.
  + * @param local_ip The local UDP IP address to listen to.
  * @param local_port The local UDP port to listen to (defaults to 14540, the same as MAVROS).
  * @return The result of adding the connection.
  */
  