make 17 state-changing execing applets (ex: "nice PROG ARGS") noexec

The applets with "<applet> [opts] PROG ARGS" API very quickly exec
another program, noexec is okay for them:

 chpst/envdir/envuidgid/softlimit/setuidgid
 chroot
 chrt
 ionice
 nice
 nohup
 setarch/linux32/linux64
 taskset
 cttyhack

"reset" and "sulogin" applets don't have this form, but also exec
another program at once, thus made noexec too.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/util-linux/chrt.c b/util-linux/chrt.c
index 4bc8b6c..52523df 100644
--- a/util-linux/chrt.c
+++ b/util-linux/chrt.c
@@ -12,7 +12,7 @@
 //config:	manipulate real-time attributes of a process.
 //config:	This requires sched_{g,s}etparam support in your libc.
 
-//applet:IF_CHRT(APPLET(chrt, BB_DIR_USR_BIN, BB_SUID_DROP))
+//applet:IF_CHRT(APPLET_NOEXEC(chrt, chrt, BB_DIR_USR_BIN, BB_SUID_DROP, chrt))
 
 //kbuild:lib-$(CONFIG_CHRT) += chrt.o