init was there in UNIX from V1

http://minnie.tuhs.org/cgi-bin/utree.pl?file=V1/init.s

PR:		212503
Approved by:	bcr (mentor)
MFC after:	4 days
Differential Revision:	https://reviews.freebsd.org/D8105

sbin/init/init.8

@@ -31,7 +31,7 @@
 .\"     @(#)init.8	8.3 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
-.Dd July 24, 2015
+.Dd October 3, 2016
 .Dt INIT 8
 .Os
 .Sh NAME
@@ -345,7 +345,7 @@ a persistent device error condition.
 An
 .Nm
 utility appeared in
-.At v6 .
+.At v1 .
 .Sh CAVEATS
 Systems without
 .Xr sysctl 8