Issue follow-up #535616 by jhodgdon: Fix spacing issue.

core/modules/node/lib/Drupal/node/Plugin/Search/NodeSearch.php

@@ -555,7 +555,7 @@ public function buildConfigurationForm(array $form, array &$form_state) {
     );
     $form['content_ranking']['#theme'] = 'node_search_admin';
     $form['content_ranking']['info'] = array(
-      '#value' => '<em>' . $this->t('Influence is a numeric multiplier used in ordering search results. A higher number means the corresponding factor has more influence on search results; zero means the factor is ignored. Changing these numbers does not require the search index to be rebuilt. Changes take effect immediately.') . '</em>'
+      '#markup' => '<p><em>' . $this->t('Influence is a numeric multiplier used in ordering search results. A higher number means the corresponding factor has more influence on search results; zero means the factor is ignored. Changing these numbers does not require the search index to be rebuilt. Changes take effect immediately.') . '</em></p>'
     );
 
     // Note: reversed to reflect that higher number = higher ranking.