launch-helper-for-tests: Add a permissive license

I wrote this, and it hasn't changed since.

Signed-off-by: Simon McVittie <smcv@collabora.com>

diff --git a/test/bus/launch-helper-for-tests.c b/test/bus/launch-helper-for-tests.c
index 6ad003d00c1d8c9a0765c096a27e1d6e12cba622..e8f29d37926c0ee58271708d88e661c5b8114861 100644 (file)
--- a/test/bus/launch-helper-for-tests.c
+++ b/test/bus/launch-helper-for-tests.c
@@ -1,4 +1,8 @@
-/* Embed a version of the real activation helper that has been altered
+/*
+ * Copyright 2018 Collabora Ltd.
+ * SPDX-License-Identifier: MIT
+ *
+ * Embed a version of the real activation helper that has been altered
  * to be testable. We monkey-patch it like this because we don't want to
  * compile test-only code into the real setuid executable, and Automake
  * versions older than 1.16 can't cope with expanding directory variables