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-rw-r--r--usr.bin/m4/look.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/usr.bin/m4/look.c b/usr.bin/m4/look.c
index 383fbc6f7fd2..acda95996033 100644
--- a/usr.bin/m4/look.c
+++ b/usr.bin/m4/look.c
@@ -1,6 +1,8 @@
/* $OpenBSD: look.c,v 1.24 2014/12/21 09:33:12 espie Exp $ */
-/*
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*