Handle serve exception

main.go

@@ -219,9 +219,10 @@ func main() {
 	log.Printf("Starting ftp server on %v:%v", opts.Hostname, opts.Port)
 	log.Printf("Username %v, Password %v", *user, *pass)
 	server := server.NewServer(opts)
-	server.ListenAndServe()
+
+	err = server.ListenAndServe()
 	if err != nil {
 		log.Fatal("Error starting server:", err)
-	}	
+	}
 }