message: use URLEncode base64
diff: @@ -180,6 +180,6 @@ func generateEncodedRandomPassword(s int) (string, error) {
  if err != nil {
  return "", err
  }
  - pw := base64.StdEncoding.EncodeToString(b)
  - return base64.StdEncoding.EncodeToString([]byte(pw)), nil
  + pw := base64.URLEncoding.EncodeToString(b)
  + return base64.URLEncoding.EncodeToString([]byte(pw)), nil
  }
  