[Plugin: WordPress Popular Posts] Exclude and include categories

I wanted not to exclude but to include categories in the wordpress popular posts configuration.
So I cloned the exclude category feature, and I realized that the select that is used has an unnecessary subselect.
The original select is:

$exclude = " AND $wpdb->posts.ID NOT IN (

SELECT  object_id
FROM    $wpdb->term_relationships AS r
        JOIN $wpdb->term_taxonomy AS x ON x.term_taxonomy_id = r.term_taxonomy_id
        JOIN $wpdb->terms AS t ON t.term_id = x.term_id
WHERE   x.taxonomy = 'category'
        AND object_id IN
           (
            SELECT object_id
            FROM $wpdb->term_relationships AS r
            JOIN $wpdb->term_taxonomy AS x ON x.term_taxonomy_id = r.term_taxonomy_id
            JOIN $wpdb->terms AS t ON t.term_id = x.term_id
            WHERE   x.taxonomy = 'category'
            AND t.term_id IN  (".$instance['exclude-cats']['cats']."))) ";

It can be substituted with the way more simple (and quicker):

$exclude = " AND $wpdb->posts.ID NOT IN (

SELECT  object_id
FROM    $wpdb->term_relationships AS r
        JOIN $wpdb->term_taxonomy AS x ON x.term_taxonomy_id = r.term_taxonomy_id
        JOIN $wpdb->terms AS t ON t.term_id = x.term_id
WHERE   x.taxonomy = 'category'
        AND t.term_id IN  (".$instance['exclude-cats']['cats'].")) ";

I tested it and it works smoothly.

How can I send the modified source to the plugin’s owner?

http://wordpress.org/extend/plugins/wordpress-popular-posts/