fix: typo use thread_priority (#1844)

(cherry picked from commit be0a339)

# Conflicts:
#	controller_manager/src/ros2_control_node.cpp

controller_manager/src/ros2_control_node.cpp

@@ -73,11 +73,17 @@ int main(int argc, char ** argv)
       }
       else
       {
+<<<<<<< HEAD
         RCLCPP_WARN(
           cm->get_logger(),
           "No real-time kernel detected on this system. See "
           "[https://control.ros.org/master/doc/ros2_control/controller_manager/doc/userdoc.html] "
           "for details on how to enable realtime scheduling.");
+=======
+        RCLCPP_INFO(
+          cm->get_logger(), "Successful set up FIFO RT scheduling policy with priority %i.",
+          thread_priority);
+>>>>>>> be0a339 (fix: typo use thread_priority (#1844))
       }
 
       // for calculating sleep time