code: function showError(err) {
    if (!err) return
    const message =
      typeof err === 'string' ? err : err.message || err.formatted || ''
    const plugin = err.plugin || 'gulp-task-maker'
  
    // Show system notification
    if (!err.warn && options.notify) {
      const where = path.basename(process.cwd())
      notifier.notify({
        title: `${where}: ${plugin} error`,
        message: message.replace(/\s*\n+\s*/g, '\n')
      })
    }
  
    // Throw or log in console
    if (options.strict) throw err
    else customLog(`${plugin} error: ${message}`)
  }
docs: Log errors (and optionally notify with a system notification)
  Throws if gulp-task-maker is in strict mode
  @param {object} err