runit/*: convert to new-style "one file" applets

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

runit/sv.c

@@ -151,7 +151,25 @@ Exit Codes
 */
 
 /* Busyboxed by Denys Vlasenko <vda.linux@googlemail.com> */
-/* TODO: depends on runit_lib.c - review and reduce/eliminate */
+
+//config:config SV
+//config:	bool "sv"
+//config:	default y
+//config:	help
+//config:	  sv reports the current status and controls the state of services
+//config:	  monitored by the runsv supervisor.
+//config:
+//config:config SV_DEFAULT_SERVICE_DIR
+//config:	string "Default directory for services"
+//config:	default "/var/service"
+//config:	depends on SV
+//config:	help
+//config:	  Default directory for services.
+//config:	  Defaults to "/var/service"
+
+//applet:IF_SV(APPLET(sv, BB_DIR_USR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_SV) += sv.o
 
 //usage:#define sv_trivial_usage
 //usage:       "[-v] [-w SEC] CMD SERVICE_DIR..."