/usr/share/php/PicoFeed/Rules/lifehacker.com.php is in php-picofeed 0.1.18-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19  | <?php
return array(
    'grabber' => array(
        '%.*%' => array(
            'test_url' => 'http://lifehacker.com/bring-water-bottle-caps-into-concerts-to-protect-your-d-1269334973',
            'body' => array(
                '//div[contains(@class, "row")/img',
                '//div[contains(@class, "content-column")]',
            ),
            'strip' => array(
                '//*[contains(@class, "meta")]',
                '//span[contains(@class, "icon")]',
                '//h1',
                '//aside',
            ),
        ),
    ),
);
 |