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

diff --git a/selinux/setenforce.c b/selinux/setenforce.c
index 9204fcc..59b1b0f 100644
--- a/selinux/setenforce.c
+++ b/selinux/setenforce.c
@@ -6,7 +6,7 @@
  *
  */
 
-#include "busybox.h"
+#include "libbb.h"
 
 /* These strings are arranged so that odd ones
  * result in security_setenforce(1) being done,