Remove superfluous double quotes and a superfluous Ns.

lib/libc/stdlib/atoi.3

@@ -1,4 +1,4 @@
-.\"	$NetBSD: atoi.3,v 1.7 2002/07/10 14:37:16 yamt Exp $
+.\"	$NetBSD: atoi.3,v 1.8 2002/08/20 15:30:07 wiz Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -80,7 +80,7 @@ function conforms to
 does no overflow checking, handles unsigned numbers poorly,
 and handles strings containing trailing extra characters
 (like
-.Dq "123abc" Ns )
+.Dq 123abc )
 poorly.
 Careful use of
 .Xr strtol 3