licensing: add forgotten spdx headers

Those are all "our" files, but we forgot to add the headers,
most likely because of non-standard file extensions.

4 files changed, 4 insertions, 0 deletions

diff --git a/src/basic/missing_mount.h b/src/basic/missing_mount.h
index c60acf041a..69b0bcfcbf 100644
--- a/src/basic/missing_mount.h
+++ b/src/basic/missing_mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 #include <sys/mount.h>
diff --git a/src/basic/missing_securebits.h b/src/basic/missing_securebits.h
index 40d6ec9d71..03fad6f503 100644
--- a/src/basic/missing_securebits.h
+++ b/src/basic/missing_securebits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 #include <linux/securebits.h>
diff --git a/src/login/systemd-user.in b/src/login/systemd-user.in
index 19e649bbe9..39bcbd71fe 100644
--- a/src/login/systemd-user.in
+++ b/src/login/systemd-user.in
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
 # This file is part of systemd.
 #
 # Used by systemd --user instances.
diff --git a/src/rpm/systemd-update-helper.in b/src/rpm/systemd-update-helper.in
index 0c6675a9db..fa35e7ba90 100755
--- a/src/rpm/systemd-update-helper.in
+++ b/src/rpm/systemd-update-helper.in
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
 set -eu
 set -o pipefail