Polish "Add condition on MongoClientFactoryBean"

Closes gh-6203

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/embedded/EmbeddedMongoAutoConfiguration.java

 /*
- * Copyright 2012-2015 the original author or authors.
+ * Copyright 2012-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -200,7 +200,7 @@ public class EmbeddedMongoAutoConfiguration {
 	 * {@code embeddedMongoServer} bean.
 	 */
 	@Configuration
-	@ConditionalOnClass({MongoClient.class, MongoClientFactoryBean.class})
+	@ConditionalOnClass({ MongoClient.class, MongoClientFactoryBean.class })
 	protected static class EmbeddedMongoDependencyConfiguration
 			extends MongoClientDependsOnBeanFactoryPostProcessor {