diff -u b/core/includes/install.core.inc b/core/includes/install.core.inc
--- b/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -276,7 +276,7 @@
   // If the hash salt leaks, it becomes possible to forge a valid testing user
   // agent, install a new Drupal and take over the oirginal site. To avoid
   // this yet allow for automated testing of the installer, make sure there is
-  // also a special test specific settings.php overriding conf_path(). 
+  // also a special test specific settings.php overriding conf_path().
   // _drupal_load_test_overrides() sets the simpletest_conf_path in-memory
   // setting in this case.
   if ($install_state['interactive'] && drupal_valid_test_ua() && !settings()->get('simpletest_conf_path')) {