Mention the version of NetBSD the utility originated from.

PR:		212476
Approved by:	bcr (mentor)
MFC after:	4 days
Differential Revision:	https://reviews.freebsd.org/D8105

sbin/fsck_msdosfs/fsck_msdosfs.8

@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 4, 2009
+.Dd October 3, 2016
 .Dt FSCK_MSDOSFS 8
 .Os
 .Sh NAME
@@ -114,7 +114,10 @@ as the answer to all operator questions.
 .Sh HISTORY
 The
 .Nm
-utility first appeared in
+utility appeared in
+.Nx 1.2 .
+.Nm
+first appeared in
 .Fx 4.4 .
 .Sh BUGS
 The