docs: function append(file, text, options) {
    options = _.sanitize(options, {atNewLine: false, encoding: 'utf-8'});
  
    if (!exists(file)) {
      write(file, text, {encoding: options.encoding});
    } else {
      if (options.atNewLine && !text.match(/^\n/) && exists(file)) text = `\n${text}`;
      fs.appendFileSync(file, text, {encoding: options.encoding});
    }
  }