code: function addheader(customComment) {
    let result = "";
    if (config.show_version) {
      result += "Version: " + config.versionstring + '\r\n';
    }
    if (config.show_comment) {
      result += "Comment: " + config.commentstring + '\r\n';
    }
    if (customComment) {
      result += "Comment: " + customComment + '\r\n';
    }
    result += '\r\n';
    return result;
  }
docs: Add additional information to the armor version of an OpenPGP binary
  packet block.
  @author  Alex
  @version 2011-12-16
  @param {String} customComment (optional) additional comment to add to the armored string
  @returns {String} The header information