From f449384c4a9ce4c70eec25d642678145afcd6311 Mon Sep 17 00:00:00 2001
From: Conrad Meyer <cem@FreeBSD.org>
Date: Mon, 22 Oct 2018 01:27:11 +0000
Subject: [PATCH] Add explicit copyright text to trivial header

Reported by:	rgrimes
---
 sys/crypto/chacha20/_chacha.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/crypto/chacha20/_chacha.h b/sys/crypto/chacha20/_chacha.h
index a7217b628d0e..20f8bb9a7948 100644
--- a/sys/crypto/chacha20/_chacha.h
+++ b/sys/crypto/chacha20/_chacha.h
@@ -1,4 +1,7 @@
 /* $FreeBSD$ */
+/*
+ * Public domain.
+ */
 
 #ifndef _CHACHA_H
 #define _CHACHA_H