dumpon(8) appears to be present in FreeBSD 2.0.5,

despite initial import of man page listed FreeBSD 2.1.

PR:		212445
Approved by:	bcr (mentor)
MFC after:	4 days
Differential Revision:	https://reviews.freebsd.org/D8105

sbin/dumpon/dumpon.8

@@ -28,7 +28,7 @@
 .\"     From: @(#)swapon.8	8.1 (Berkeley) 6/5/93
 .\" $FreeBSD$
 .\"
-.Dd October 8, 2014
+.Dd October 3, 2016
 .Dt DUMPON 8
 .Os
 .Sh NAME
@@ -154,7 +154,7 @@ boot-time system configuration
 The
 .Nm
 utility appeared in
-.Fx 2.1 .
+.Fx 2.0.5 .
 .Sh BUGS
 Because the file system layer is already dead by the time a crash dump
 is taken, it is not possible to send crash dumps directly to a file.