usage.c: remove reference to busybox.h
*: s/include "busybox.h"/include "libbb.h"

diff --git a/selinux/chcon.c b/selinux/chcon.c
index 437502c..a8a816b 100644
--- a/selinux/chcon.c
+++ b/selinux/chcon.c
@@ -5,10 +5,11 @@
  *
  * Copyright (C) 2006 - 2007 KaiGai Kohei <kaigai@kaigai.gr.jp>
  */
-#include "busybox.h"
 #include <getopt.h>
 #include <selinux/context.h>
 
+#include "libbb.h"
+
 #define OPT_RECURSIVE		(1<<0)	/* 'R' */
 #define OPT_CHANHES		(1<<1)	/* 'c' */
 #define OPT_NODEREFERENCE	(1<<2)	/* 'h' */