From 6f42ac9cce2ded1f62cf967f42c85b1171678fa1 Mon Sep 17 00:00:00 2001
From: Benoit Giannangeli <giann008@gmail.com>
Date: Fri, 24 Mar 2017 17:10:22 +0100
Subject: Added missing sprintf

---
 src/lstrlib.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/lstrlib.js')

diff --git a/src/lstrlib.js b/src/lstrlib.js
index 1294baa..2e623b6 100644
--- a/src/lstrlib.js
+++ b/src/lstrlib.js
@@ -366,7 +366,7 @@ const str_format = function(L) {
                             concat(b, s);  /* keep entire string */
                             lapi.lua_pop(L, 1);  /* remove result from 'luaL_tolstring' */
                         } else {  /* format the string into 'buff' */
-                            concat(b, s);
+                            concat(b, lua.to_luastring(sprintf(String.fromCharCode(...form), str.jsstring())));
                             lapi.lua_pop(L, 1);  /* remove result from 'luaL_tolstring' */
                         }
                     }
-- 
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