Log passed arguments

i.e:

    2015/10/12 18:14:11 127.0.0.1:56983 200 GET /auth_token.js
    2015/10/12 18:14:11 New client connected: 127.0.0.1:56984
    2015/10/12 18:14:11 127.0.0.1:56984 passed arguments are: "--server_id XXXXXXXXXXXXXXX --type serial --auth_token YYYYYYYYYYYYYYYY"
    2015/10/12 18:14:11 Command is running for client 127.0.0.1:56984 with PID 95770
    2015/10/12 18:14:11 127.0.0.1:56984 101 GET /ws
    2015/10/12 18:14:11 Command exited for: 127.0.0.1:56984

app/app.go

@@ -317,6 +317,7 @@ func (app *App) handleWS(w http.ResponseWriter, r *http.Request) {
 		}
 		params := query.Query()["arg"]
 		if len(params) != 0 {
+			log.Printf("%s passed arguments are: %q", r.RemoteAddr, strings.Join(params, " "))
 			argv = append(argv, params...)
 		}
 	}