diff -u b/core/modules/system/src/Tests/Entity/ValidReferenceConstraintValidatorTest.php b/core/modules/system/src/Tests/Entity/ValidReferenceConstraintValidatorTest.php
--- b/core/modules/system/src/Tests/Entity/ValidReferenceConstraintValidatorTest.php
+++ b/core/modules/system/src/Tests/Entity/ValidReferenceConstraintValidatorTest.php
@@ -73,2 +73,3 @@
   }
+
 }