busybox: update 1.18.0 to 1.18.1

* 1.18.1 is considered as the latest stable version
* add the lastest fixes from http://busybox.net/downloads/fixes-1.18.1/
* default 1.18.1 for SlugOS

Signed-off-by: Eric Bénard <eric@eukrea.com>
Acked-by: Khem Raj <raj.khem@gmail.com>
Cc: Mike Westerhof <mwester@dls.net>
Acked-by: Mike Westerhof <mwester@dls.net>

conf/distro/include/preferred-slugos-versions.inc

@@ -29,7 +29,7 @@ PREFERRED_VERSION_automake-native		?= "1.11.1"
 PREFERRED_VERSION_binutils			?= "2.20.1"
 PREFERRED_VERSION_binutils-cross		?= "2.20.1"
 PREFERRED_VERSION_binutils-cross-sdk		?= "2.20.1"
-PREFERRED_VERSION_busybox			?= "1.18.0"
+PREFERRED_VERSION_busybox			?= "1.18.1"
 PREFERRED_VERSION_dbus				?= "1.2.3"
 PREFERRED_VERSION_eglibc			?= "2.11"
 PREFERRED_VERSION_eglibc-initial		?= "2.11"

recipes/busybox/busybox-1.18.1/busybox-1.18.1-cpio.patch

@@ -0,0 +1,20 @@
+diff -urpN busybox-1.18.1/archival/cpio.c busybox-1.18.1-cpio/archival/cpio.c
+--- busybox-1.18.1/archival/cpio.c	2010-12-20 01:41:26.000000000 +0100
++++ busybox-1.18.1-cpio/archival/cpio.c	2010-12-26 02:26:38.000000000 +0100
+@@ -308,16 +308,12 @@ int cpio_main(int argc UNUSED_PARAM, cha
+ 	/* -L makes sense only with -o or -p */
+
+ #if !ENABLE_FEATURE_CPIO_O
+-	/* no parameters */
+-	opt_complementary = "=0";
+ 	opt = getopt32(argv, OPTION_STR, &cpio_filename);
+ 	argv += optind;
+ 	if (opt & CPIO_OPT_FILE) { /* -F */
+ 		xmove_fd(xopen(cpio_filename, O_RDONLY), STDIN_FILENO);
+ 	}
+ #else
+-	/* _exactly_ one parameter for -p, thus <= 1 param if -p is allowed */
+-	opt_complementary = ENABLE_FEATURE_CPIO_P ? "?1" : "=0";
+ 	opt = getopt32(argv, OPTION_STR "oH:" IF_FEATURE_CPIO_P("p"), &cpio_filename, &cpio_fmt);
+ 	argv += optind;
+ 	if ((opt & (CPIO_OPT_FILE|CPIO_OPT_CREATE)) == CPIO_OPT_FILE) { /* -F without -o */