[src/trunk]: src/usr.bin/vis don't allow NULL for extra

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/392432fe1b2b
branches:  trunk
changeset: 784903:392432fe1b2b
user:      christos <christos%NetBSD.org@localhost>
date:      Wed Feb 13 22:28:41 2013 +0000

description:
don't allow NULL for extra

diffstat:

 usr.bin/vis/vis.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 350d68579b54 -r 392432fe1b2b usr.bin/vis/vis.c
--- a/usr.bin/vis/vis.c Wed Feb 13 22:24:48 2013 +0000
+++ b/usr.bin/vis/vis.c Wed Feb 13 22:28:41 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vis.c,v 1.18 2013/02/13 22:24:48 christos Exp $        */
+/*     $NetBSD: vis.c,v 1.19 2013/02/13 22:28:41 christos Exp $        */
 
 /*-
  * Copyright (c) 1989, 1993
@@ -39,7 +39,7 @@
 #if 0
 static char sccsid[] = "@(#)vis.c      8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: vis.c,v 1.18 2013/02/13 22:24:48 christos Exp $");
+__RCSID("$NetBSD: vis.c,v 1.19 2013/02/13 22:28:41 christos Exp $");
 #endif /* not lint */
 
 #include <stdio.h>
@@ -58,7 +58,7 @@
 #ifdef DEBUG
 int debug;
 #endif
-static char *extra;
+static const char *extra = "";
 
 static void process(FILE *);