1 files changed, 1 insertions, 0 deletions
diff --git a/dtdiff b/dtdiff
index 5fa772b..cdbf079 100644
--- a/dtdiff
+++ b/dtdiff
@@ -1,4 +1,5 @@
 #! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
 
 # This script uses the bash <(...) extension.
 # If you want to change this to work with a generic /bin/sh, make sure