contrib/compiler: machine readable license

diff --git a/contrib/ccan/compiler/compiler.h b/contrib/ccan/compiler/compiler.h
index bce4f25a122612d7f26f8e846564747a01836b3b..7c4f95505dc9c5634909bfb361a635f3ab793c5d 100644 (file)
--- a/contrib/ccan/compiler/compiler.h
+++ b/contrib/ccan/compiler/compiler.h
@@ -1,4 +1,5 @@
-/* CC0 (Public domain) - see LICENSE file for details */
+/* SPDX-License-Identifier: CC0-1.0
+ * Source: https://ccodearchive.net/info/compiler.html */
 #ifndef CCAN_COMPILER_H
 #define CCAN_COMPILER_H
 #include "config.h"