delete useless .Ns macro that jmc@ found with mdoclint(1)

diff --git a/usr.bin/mandoc/mandoc.1 b/usr.bin/mandoc/mandoc.1
index 3e3f479..fe0b540 100644 (file)
--- a/usr.bin/mandoc/mandoc.1
+++ b/usr.bin/mandoc/mandoc.1
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: mandoc.1,v 1.128 2017/06/24 19:05:36 schwarze Exp $
+.\"    $OpenBSD: mandoc.1,v 1.129 2017/06/24 21:08:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2012, 2014-2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -688,7 +688,7 @@ Messages displayed by
 .Nm
 follow this format:
 .Bd -ragged -offset indent
-.Nm Ns :
+.Nm :
 .Ar file : Ns Ar line : Ns Ar column : level : message : macro args
 .Pq Ar os
 .Ed