Convert all util-linux/* applets to "new style" applet definitions

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/util-linux/mkswap.c b/util-linux/mkswap.c
index dcb53f0..954a194 100644
--- a/util-linux/mkswap.c
+++ b/util-linux/mkswap.c
@@ -5,6 +5,29 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+//config:config MKSWAP
+//config:	bool "mkswap"
+//config:	default y
+//config:	help
+//config:	  The mkswap utility is used to configure a file or disk partition as
+//config:	  Linux swap space. This allows Linux to use the entire file or
+//config:	  partition as if it were additional RAM, which can greatly increase
+//config:	  the capability of low-memory machines. This additional memory is
+//config:	  much slower than real RAM, but can be very helpful at preventing your
+//config:	  applications being killed by the Linux out of memory (OOM) killer.
+//config:	  Once you have created swap space using 'mkswap' you need to enable
+//config:	  the swap space using the 'swapon' utility.
+//config:
+//config:config FEATURE_MKSWAP_UUID
+//config:	bool "UUID support"
+//config:	default y
+//config:	depends on MKSWAP
+//config:	help
+//config:	  Generate swap spaces with universally unique identifiers.
+
+//applet:IF_MKSWAP(APPLET(mkswap, BB_DIR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_MKSWAP) += mkswap.o
 
 //usage:#define mkswap_trivial_usage
 //usage:       "[-L LBL] BLOCKDEV [KBYTES]"