Issue in NetFlow processor stop logic

[raghurampai]

Noticed an issue in NetFlow decoder's stop logic which can result in-
fatal error: all goroutines are asleep - deadlock!

Below is the issue described in decoders/decoder.go code-

func (w Worker) Start() {   
	go func() {  
		//log.Debugf("Worker %v started", w.Id)  
		for {  
			// w.WorkerPool <- w.InMsg  -- Issue commented  
			select {  
			case <-w.Quit:  
				break  
			// case msg := <-w.InMsg:  -- Issue commented  
			case w.WorkerPool <- w.InMsg:  // -- Fix added  
			        msg := <-w.InMsg    // -- Fix added  
                                timeTrackStart := time.Now()  

Go playground for quick check-
https://play.golang.org/p/LnDFz8vT_4G

Thanks!

[lspgn]

Thanks @raghurampai for the report.
Made a PR for the fix. Will test.