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

diff --git a/archival/ar.c b/archival/ar.c
index 23d9b49..31e96de 100644
--- a/archival/ar.c
+++ b/archival/ar.c
@@ -14,7 +14,7 @@
  * http://www.unix-systems.org/single_unix_specification_v2/xcu/ar.html
  */
 
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 static void header_verbose_list_ar(const file_header_t *file_header)
diff --git a/archival/bbunzip.c b/archival/bbunzip.c
index 00cece4..83b5637 100644
--- a/archival/bbunzip.c
+++ b/archival/bbunzip.c
@@ -5,7 +5,7 @@
  *  Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 enum {
diff --git a/archival/cpio.c b/archival/cpio.c
index 0113867..6d1ee16 100644
--- a/archival/cpio.c
+++ b/archival/cpio.c
@@ -16,7 +16,7 @@
 #include <string.h>
 #include <unistd.h>
 #include "unarchive.h"
-#include "busybox.h"
+#include "libbb.h"
 
 #define CPIO_OPT_EXTRACT			0x01
 #define CPIO_OPT_TEST				0x02
diff --git a/archival/dpkg.c b/archival/dpkg.c
index 7d31ad1..dcbd0d1 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -24,7 +24,7 @@
  *
  */
 
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 /* note: if you vary hash_prime sizes be aware,
diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c
index fde3c33..138caff 100644
--- a/archival/dpkg_deb.c
+++ b/archival/dpkg_deb.c
@@ -4,7 +4,7 @@
  *
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 #define DPKG_DEB_OPT_CONTENTS	1
diff --git a/archival/gzip.c b/archival/gzip.c
index 03b6b91..fdf2a79 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -39,7 +39,7 @@
 aa:      85.1% -- replaced with aa.gz
 */
 
-#include "busybox.h"
+#include "libbb.h"
 
 
 /* ===========================================================================
diff --git a/archival/rpm.c b/archival/rpm.c
index 654a4a3..71ed32e 100644
--- a/archival/rpm.c
+++ b/archival/rpm.c
@@ -7,7 +7,7 @@
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 #define RPM_HEADER_MAGIC        "\216\255\350"
diff --git a/archival/rpm2cpio.c b/archival/rpm2cpio.c
index 307d1a0..460aeaf 100644
--- a/archival/rpm2cpio.c
+++ b/archival/rpm2cpio.c
@@ -6,7 +6,7 @@
  *
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 #define RPM_MAGIC "\355\253\356\333"
diff --git a/archival/tar.c b/archival/tar.c
index e634cc6..4323553 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -25,7 +25,7 @@
 
 #include <fnmatch.h>
 #include <getopt.h>
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 #if ENABLE_FEATURE_TAR_CREATE
diff --git a/archival/unzip.c b/archival/unzip.c
index 8a9034f..ef58cd4 100644
--- a/archival/unzip.c
+++ b/archival/unzip.c
@@ -24,7 +24,7 @@
  * - central directory
  */
 
-#include "busybox.h"
+#include "libbb.h"
 #include "unarchive.h"
 
 #define ZIP_FILEHEADER_MAGIC		SWAP_LE32(0x04034b50)