From 8dfdad3ee84a73ec7da2312e8c8d893dd8968d17 Mon Sep 17 00:00:00 2001
From: daurnimator <quae@daurnimator.com>
Date: Tue, 12 Dec 2017 14:31:31 +1100
Subject: src/lobject.js: Have luaO_pushvfstring respect null as terminator for
 %s

---
 src/lobject.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/lobject.js b/src/lobject.js
index e69a9ef..91078ed 100644
--- a/src/lobject.js
+++ b/src/lobject.js
@@ -526,6 +526,12 @@ const luaO_pushvfstring = function(L, fmt, argp) {
             case char['s']: {
                 let s = argp[a++];
                 if (s === null) s = defs.to_luastring("(null)", true);
+                else {
+                    /* respect null terminator */
+                    let i = s.indexOf(0);
+                    if (i !== -1)
+                        s = s.slice(0, i);
+                }
                 pushstr(L, s);
                 break;
             }
-- 
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