code: function findLogPath(appName, fileName) {
    fileName = fileName || 'log.log';
    var userData = appName ? null : utils.getUserData();
    appName = appName || getAppName();
  
    var homeDir = os.homedir ? os.homedir() : process.env.HOME;
  
    var dir;
    switch (process.platform) {
      case 'darwin': {
        dir = prepareDir(homeDir, 'Library', 'Logs', appName)
          .or(userData)
          .or(homeDir, 'Library', 'Application Support', appName)
          .result;
        break;
      }
  
      case 'win32': {
        dir = prepareDir(userData)
          .or(process.env.APPDATA, appName)
          .or(homeDir, 'AppData', 'Roaming', appName)
          .result;
        break;
      }
  
      default: {
        dir = prepareDir(userData)
          .or(process.env.XDG_CONFIG_HOME, appName)
          .or(homeDir, '.config', appName)
          .or(process.env.XDG_DATA_HOME, appName)
          .or(homeDir, '.local', 'share', appName)
          .result;
        break;
      }
    }
  
    if (dir) {
      return path.join(dir, fileName);
    }
  
    return false;
  }
docs: Try to determine a platform-specific path where can write logs
  @param {string} [appName] Used to determine the last part of a log path
  @param {string} [fileName='log.log']
  @return {string|boolean}