message: updated length rule english message
diff: @@ -24,7 +24,7 @@ const messages = {
  ip: (field) => `The ${field} field must be a valid ip address.`,
  length: (field, [length, max]) => {
  if (max) {
  - return `The ${field} length be between ${length} and ${max}.`;
  + return `The ${field} length must be between ${length} and ${max}.`;
  }
  return `The ${field} length must be ${length}.`;
  