slirp: clarify license of slirp files using SPDX: implicit via COPYRIGHT

Add SPDX license identifier to clarify the license of files with
reference to BSD license from slirp COPYRIGHT file.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/misc.h b/src/misc.h
index 448fd40..c5b7739 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Copyright (c) 1995 Danny Gasparovski.
  *