+ add a copyright/license header for the nullable unit

git-svn-id: trunk@48006 -

packages/rtl-objpas/src/inc/nullable.pp

@@ -1,3 +1,17 @@
+{
+  This file is part of the Free Pascal run time library.
+  Copyright (C) 2020 Michael Van Canneyt
+  member of the Free Pascal development team.
+
+  Nullable generic type.
+
+  See the file COPYING.FPC, included in this distribution,
+  for details about the copyright.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+}
 unit nullable;
 
 {$mode objfpc}