Polish

spring-boot-samples/spring-boot-sample-kafka/src/main/java/sample/kafka/Consumer.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.kafka;
 
 import org.springframework.kafka.annotation.KafkaListener;
@@ -26,4 +27,4 @@ class Consumer {
 		System.out.println("Received sample message [" + message + "]");
 	}
 
-}
+}