Don peril-sensitive glasses and throw the switch to move nologin(8) from

/sbin to /usr/sbin.  A symlink from /sbin/nologin -> /usr/sbin/nologin
is created for compatibility purposes.

This will probably not cause any problems, but anyone who is doing
anything particularly unusual with nologin(8) or shells in general might
be well advised to check that everything still works.

Bikesheds on:	cvs-all, current

sbin/Makefile

@@ -68,7 +68,6 @@ SUBDIR=	adjkerntz \
 	newfs \
 	newfs_msdos \
 	nfsiod \
-	nologin \
 	nos-tun \
 	${_pfctl} \
 	${_pflogd} \

usr.sbin/Makefile

@@ -100,6 +100,7 @@ SUBDIR=	ac \
 	nfsd \
 	ngctl \
 	nghook \
+	nologin \
 	${_nslookup} \
 	${_nsupdate} \
 	ntp \