Add proper licensing notice

Author: jserv

bench.c

@@ -1,7 +1,9 @@
-/* Copyright (c) 2016 National Cheng Kung University, Taiwan.
+/*
+ * Copyright (c) 2016 National Cheng Kung University, Taiwan.
  * All rights reserved.
  * Use of this source code is governed by a BSD-style license.
  */
+
 #include "tlsf.h"
 #include <assert.h>
 #include <errno.h>

test.c

@@ -1,7 +1,9 @@
-/* Copyright (c) 2016 National Cheng Kung University, Taiwan.
+/*
+ * Copyright (c) 2016 National Cheng Kung University, Taiwan.
  * All rights reserved.
  * Use of this source code is governed by a BSD-style license.
  */
+
 #include "tlsf.h"
 #include <assert.h>
 #include <stdbool.h>

tlsf.c

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2006-2016, Matthew Conte
+ * Copyright (c) 2017-2020, Daniel Mendler
+ * All rights reserved.
+ * Use of this source code is governed by a BSD-style license.
+ */
+
 #include "tlsf.h"
 #include <stdbool.h>
 #include <string.h>