RangeFinder: fix example sketch

libraries/AP_RangeFinder/examples/RFIND_test/RFIND_test.pde

@@ -61,9 +61,9 @@ void loop()
     hal.scheduler->delay(100);
     sonar.update();
 
-    hal.console->printf_P(PSTR("Primary: health %d distance_cm %d \n"), (int)sonar.healthy(), sonar.distance_cm());
-    hal.console->printf_P(PSTR("All: device_0 type %d health %d distance_cm %d, device_1 type %d health %d distance_cm %d\n"),
-    (int)sonar._type[0], (int)sonar.healthy(0), sonar.distance_cm(0), (int)sonar._type[1], (int)sonar.healthy(1), sonar.distance_cm(1));
+    hal.console->printf_P(PSTR("Primary: status %d distance_cm %d \n"), (int)sonar.status(), sonar.distance_cm());
+    hal.console->printf_P(PSTR("All: device_0 type %d status %d distance_cm %d, device_1 type %d status %d distance_cm %d\n"),
+    (int)sonar._type[0], (int)sonar.status(0), sonar.distance_cm(0), (int)sonar._type[1], (int)sonar.status(1), sonar.distance_cm(1));
 
 }
 AP_HAL_MAIN();