Add SPDX annotation

Related: OS#3515
Change-Id: I3719bd8dc015569ecd81928fc079e27593cdca09
diff --git a/CommonLibs/Vector.h b/CommonLibs/Vector.h
index 4c96b78..0970248 100644
--- a/CommonLibs/Vector.h
+++ b/CommonLibs/Vector.h
@@ -2,6 +2,8 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *