switched the rest of FSM + Anduril to use SPDX license headers

instead of full GPL headers (or all too often, nothing at all)

There are a few "FIXME" entries where I'm not sure about the correct copyright.

1 files changed, 4 insertions, 3 deletions

diff --git a/tk.h b/tk.h
index b61db08..d618134 100644
--- a/tk.h
+++ b/tk.h
@@ -1,5 +1,7 @@
-#ifndef TK_H
-#define TK_H
+// tk.h : misc handy stuff
+// Copyright (C) 2015-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
 /////
 // tk.h
@@ -14,4 +16,3 @@
 // use it like this:
 //#include incfile(CONFIGFILE)
 
-#endif