r243637 changed the default number of nfsd threads created,

but the man page did not reflect this.
This is a content change.

Reported by:	bde
MFC after:	2 weeks

usr.sbin/nfsd/nfsd.8

@@ -28,7 +28,7 @@
 .\"	@(#)nfsd.8	8.4 (Berkeley) 3/29/95
 .\" $FreeBSD$
 .\"
-.Dd April 23, 2011
+.Dd July 18, 2014
 .Dt NFSD 8
 .Os
 .Sh NAME
@@ -53,7 +53,7 @@ At least one
 .Nm
 must be running for a machine to operate as a server.
 .Pp
-Unless otherwise specified, four servers for
+Unless otherwise specified, eight servers per CPU for
 .Tn UDP
 transport are started.
 .Pp