Fix formatting

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/reactive/ReactiveMultipartPropertiesTests.java

@@ -17,7 +17,9 @@
 package org.springframework.boot.autoconfigure.web.reactive;
 
 import org.junit.jupiter.api.Test;
+
 import org.springframework.http.codec.multipart.DefaultPartHttpMessageReader;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**