From b9432848937dc5250a90f9c9325af5bd4a59ade9 Mon Sep 17 00:00:00 2001
From: rsc <rsc>
Date: Tue, 28 Aug 2007 04:15:35 +0000
Subject: [PATCH] handle printf("%s\n", 0)

---
 printf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/printf.c b/printf.c
index 0ddd90b..ad9c758 100644
--- a/printf.c
+++ b/printf.c
@@ -63,6 +63,8 @@ printf(int fd, char *fmt, ...)
       } else if(c == 's'){
         s = (char*)*ap;
         ap++;
+        if(s == 0)
+          s = "(null)";
         while(*s != 0){
           putc(fd, *s);
           s++;