Fix Javadoc formatting

spring-websocket/src/main/java/org/springframework/web/socket/config/annotation/EnableWebSocketMessageBroker.java

@@ -45,12 +45,12 @@ import org.springframework.context.annotation.Import;
  * @EnableWebSocketMessageBroker
  * public class MyConfiguration extends AbstractWebSocketMessageBrokerConfigurer {
  *
- * 	   @Override
+ *     @Override
  *     public void registerStompEndpoints(StompEndpointRegistry registry) {
  *         registry.addEndpoint("/portfolio").withSockJS();
  *     }
  *
- * 	   @Bean
+ *     @Bean
  *     public void configureMessageBroker(MessageBrokerRegistry registry) {
  *         registry.enableStompBrokerRelay("/queue/", "/topic/");
  *         registry.setApplicationDestinationPrefixes("/app/");