doc improvement

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@15156 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/util/RemotingDiagnostics.java

@@ -40,6 +40,9 @@ import java.util.TreeMap;
 /**
  * Various remoting operations related to diagnostics.
  *
+ * <p>
+ * These code are useful whereever {@link VirtualChannel} is used, such as master, slaves, Maven JVMs, etc.
+ *
  * @author Kohsuke Kawaguchi
  * @since 1.175
  */