Add GPL-3.0-or-later SPDX identifier to all scripts

Add the SPDX license identifier GPL-3.0-or-later to the header of all
scripts without a specific license and upgrading those that are stated
as GPL-2.0 to become GPL-3.0-or-later.

1 files changed, 2 insertions, 1 deletions

diff --git a/archbuild.in b/archbuild.in
index 7cd65bd..e6cf19a 100644
--- a/archbuild.in
+++ b/archbuild.in
@@ -1,5 +1,6 @@
 #!/bin/bash
-# License: Unspecified
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
 
 m4_include(lib/common.sh)
 m4_include(lib/archroot.sh)