Polish contribution

Closes gh-4356

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/endpoint/SystemPublicMetricsTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014 the original author or authors.
+ * Copyright 2012-2015 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.

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

@@ -914,6 +914,7 @@ endpoint you should see a response similar to this:
 		"threads": 15,
 		"threads.daemon": 11,
 		"threads.peak": 15,
+		"threads.totalStarted": 42,
 		"uptime": 494836,
 		"instance.uptime": 489782,
 		"datasource.primary.active": 5,