Nodes global variables

[Steve-Mcl]

Was missing the e. (code was untested)

var oldDevices = msg.payload.old;
if(oldDevices && oldDevices.length) {
  msg.payload = `Found ${oldDevices.length} devices with wrong version...\n` + msg.payload.old.map(e => `NAME: ${e.name}, IP: ${e.ipAddress}, VER: ${e.version}`).join("\n")
  return msg;
}