commit acdaa9e0eab2f1d0e5dc93ad89d454d4b59796c4
Author: Sam <sam@1485048.no-reply.drupal.org>
Date:   Wed Feb 20 08:50:56 2019 +0800

    Foo

diff --git a/preview_link.post_update.php b/preview_link.install
similarity index 66%
rename from preview_link.post_update.php
rename to preview_link.install
index 962f359..fd7a9a0 100644
--- a/preview_link.post_update.php
+++ b/preview_link.install
@@ -2,14 +2,14 @@
 
 /**
  * @file
- * Post update file.
+ * Install file.
  */
 
 /**
  * Install the settings object.
  */
-function preview_link_post_update_install_config() {
+function preview_link_update_8101() {
   $config = \Drupal::configFactory()->getEditable('preview_link.settings');
   $config->set('enabled_entity_types', []);
-  $config->save();
+  $config->save(TRUE);
 }