Fix checkstyle failures due to new-format headers

Author: mbellade

hibernate-core/src/main/java/org/hibernate/cfg/Compatibility.java

@@ -1,6 +1,8 @@
 /*
- * SPDX-License-Identifier: LGPL-2.1-or-later
- * Copyright Red Hat Inc. and Hibernate Authors
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later
+ * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
  */
 package org.hibernate.cfg;
 

hibernate-core/src/main/java/org/hibernate/cfg/Unsafe.java

@@ -1,6 +1,8 @@
 /*
- * SPDX-License-Identifier: LGPL-2.1-or-later
- * Copyright Red Hat Inc. and Hibernate Authors
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later
+ * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
  */
 package org.hibernate.cfg;