From d658a1e5c790166834e3f1c86f9cc2661ee27173 Mon Sep 17 00:00:00 2001
From: tjr <tjr@FreeBSD.org>
Date: Thu, 6 Jun 2002 03:29:23 +0000
Subject: [PATCH] Don't modify output that is to be quoted if it contains no
 IFS characters or shell metacharacters.

---
 bin/sh/output.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/bin/sh/output.c b/bin/sh/output.c
index 9b8fa5cf1b61..ab56b427ace0 100644
--- a/bin/sh/output.c
+++ b/bin/sh/output.c
@@ -68,6 +68,7 @@ static const char rcsid[] =
 #include "output.h"
 #include "memalloc.h"
 #include "error.h"
+#include "var.h"
 
 
 #define OUTBUFSIZ BUFSIZ
@@ -140,6 +141,12 @@ outqstr(const char *p, struct output *file)
 {
 	char ch;
 
+	if (p[strcspn(p, "|&;<>()$`\\\"'")] == '\0' && (!ifsset() ||
+	    p[strcspn(p, ifsval())] == '\0')) {
+		outstr(p, file);
+		return;
+	}
+
 	out1c('\'');
 	while ((ch = *p++) != '\0') {
 		switch (ch) {