Merge pull request #21809 from demeritcowboy/site-path

drupal#167 - Deprecated service to be removed in Drupal 10

setup/src/Setup/DrupalUtil.php

@@ -20,7 +20,7 @@ class DrupalUtil {
       return basename(conf_path());
     }
     elseif (class_exists('Drupal')) {
-      return \Drupal::service('site.path');
+      return \Drupal::getContainer()->getParameter('site.path');
     }
     else {
       throw new \Exception('Cannot detect path under Drupal "sites/".');