code: function signalHandler(signal)
  {
      var exit = true;
      cleanupHandlers.forEach(function (cleanup) {
          if (cleanup(null, signal) === false)
              exit = false;
      });
      if (exit) {
          if (signal === 'SIGINT' && messages && messages.ctrl_C !== '')
              process.stderr.write(messages.ctrl_C + "\n");
          uninstall(); // don't cleanup again
          // necessary to communicate the signal to the parent process
          process.kill(process.pid, signal);
      }
  }
docs: // HANDLERS /////////////////////////////////////////////////////////////////