/* Change Comments Cookie Text */
function change_comment_cookie_text( $translated_text ) {
    if ( comments_open() ) {
        switch ($translated_text) {
            case 'Save my name, email, and website in this browser for the next time I comment.':
                $translated_text = __('Save my name and email in this browser for the next time I comment.');
                break;
        }
    }
    return $translated_text;
}
add_filter( 'gettext', 'change_comment_cookie_text', 20, 1 );