From 5e8c162b6cb238ecfc22c105f7577a47c327f307 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 5 Feb 2015 15:50:24 -0200
Subject: [PATCH] detail

---
 lstrlib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lstrlib.c b/lstrlib.c
index ac5793b0..830699bd 100644
--- a/lstrlib.c
+++ b/lstrlib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lstrlib.c,v 1.222 2015/01/13 17:18:25 roberto Exp roberto $
+** $Id: lstrlib.c,v 1.224 2015/02/04 12:54:31 roberto Exp roberto $
 ** Standard library for string operations and pattern-matching
 ** See Copyright Notice in lua.h
 */
@@ -835,7 +835,7 @@ static int num2straux (char *buff, lua_Number x) {
     return sprintf(buff, LUA_NUMBER_FMT, x);  /* equal to '%g' */
   else if (x == 0) {  /* can be -0... */
     sprintf(buff, LUA_NUMBER_FMT, x);
-    strcpy(buff + (buff[0] == '-' ? 1 : 0), "0x0p+0");
+    strcat(buff, "x0p+0");  /* reuses '0/-0' from 'sprintf'... */
     return strlen(buff);
   }
   else {