message: action: don't repeat comment but use
diff: @@ -260,9 +260,7 @@ public:
  /**
  * @brief Get the return to launch minimum return altitude.
  *
  - * When return to launch is initiated, the vehicle climbs to the return altitude if it is lower
  - * and stays at the current altitude if higher than the return altitude. Then it returns to the
  - * home location and lands there.
  + * @sa `set_return_to_launch_return_altitude`.
  *
  * @return Return altitude relative to takeoff location, in meters.
  */
  