Troubles when WordPress is installed in a webroot subdirectorn

Not all of the references to files under wp-admin use paths relative to ABSPATH. For instance, this bit in intel_info.php fails if the plugin is NOT installed under ABSPATH. (A security practice, e.g., https://roots.io/bedrock/)

/** WordPress Administration Bootstrap */
$dirname = dirname( __FILE__ );
$a = explode('/', $dirname);
while(count($a)) {
        array_pop ($a);
        $root_dirname = implode('/', $a);
        if (file_exists ( $root_dirname . '/wp-admin/admin.php')) {
                require_once(  $root_dirname . '/wp-admin/admin.php' );
                break;
        }
}