Spaces to tabs and license cleanup

samples/boot/src/main/java/sample/mvc/IndexController.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2015 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. You may obtain a copy of
@@ -26,8 +26,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
  */
 @Controller
 public class IndexController {
-    @RequestMapping("/")
-    public String index() {
-        return "index";
-    }
+	@RequestMapping("/")
+	public String index() {
+		return "index";
+	}
 }