docs: function(item) {
    // Drop newline symbol in error string
    item.msg = (Array.isArray(item.msg) ? item.msg.join(' ') : item.msg).replace('\n', '');
    // Using zero instead of undefined
    item.column = (item.column === undefined) ? 0 : item.column;
    // Drop `PUG:LINT_` prefix in error code
    item.code = chalk.grey(item.code.replace(/(PUG:|LINT_)/g, ''));
    // Formatting output
    var position = chalk.grey(item.line + ':' + item.column);
    return ['', position, chalk.red('error'), item.msg, item.code];
  }