set the thread name

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@3174 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/TcpSlaveAgentListener.java

@@ -57,6 +57,7 @@ public class TcpSlaveAgentListener extends Thread {
      *      Use 0 to choose a random port.
      */
     public TcpSlaveAgentListener(int port) throws IOException {
+        super("TCP slave agent listener port="+port);
         serverSocket = new ServerSocket(port);
         this.configuredPort = port;