Polish

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -2382,7 +2382,7 @@ methods. Dedicated variants exists for Tomcat, Jetty and Undertow.
 	import org.springframework.boot.web.server.WebServerFactoryCustomizer;
 	import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
 	import org.springframework.stereotype.Component;
-	
+
 	@Component
 	public class CustomizationBean implements WebServerFactoryCustomizer<ConfigurableServletWebServerFactory> {
 
@@ -2390,7 +2390,7 @@ methods. Dedicated variants exists for Tomcat, Jetty and Undertow.
 		public void customize(ConfigurableServletWebServerFactory server) {
 			server.setPort(9000);
 		}
-	
+
 	}
 ----