AC_WPNav: lowering waypoint radius minimum to 5cm

libraries/AC_WPNav/AC_WPNav.h

@@ -18,7 +18,7 @@
 #define WPNAV_WP_SPEED_MIN               20.0f      // minimum horizontal speed between waypoints in cm/s
 #define WPNAV_WP_TRACK_SPEED_MIN         50.0f      // minimum speed along track of the target point the vehicle is chasing in cm/s (used as target slows down before reaching destination)
 #define WPNAV_WP_RADIUS                 200.0f      // default waypoint radius in cm
-#define WPNAV_WP_RADIUS_MIN              10.0f      // minimum waypoint radius in cm
+#define WPNAV_WP_RADIUS_MIN               5.0f      // minimum waypoint radius in cm
 
 #define WPNAV_WP_SPEED_UP               250.0f      // default maximum climb velocity
 #define WPNAV_WP_SPEED_DOWN             150.0f      // default maximum descent velocity