acl.h: Add GPL header and doxygen file comment.

diff --git a/acl.h b/acl.h
index 34686e9..9f43e6c 100644 (file)
--- a/acl.h
+++ b/acl.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
+
+/** \file acl.h Exported functions of acl.c. */
 
 void acl_init(struct list_head *acl, char * const *acl_info, int num);
 int acl_lookup(int fd, struct list_head *acl);