From c03c527fd207b4ad8f5a8e0f4f2c176bd227c979 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 15 Feb 2021 13:31:45 -0300
Subject: Bug: 'string.concat' error message uses wrong format

---
 ltablib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ltablib.c')

diff --git a/ltablib.c b/ltablib.c
index d344a47e..c7f0e4dc 100644
--- a/ltablib.c
+++ b/ltablib.c
@@ -146,7 +146,7 @@ static int tmove (lua_State *L) {
 static void addfield (lua_State *L, luaL_Buffer *b, lua_Integer i) {
   lua_geti(L, 1, i);
   if (!lua_isstring(L, -1))
-    luaL_error(L, "invalid value (%s) at index %d in table for 'concat'",
+    luaL_error(L, "invalid value (%s) at index %I in table for 'concat'",
                   luaL_typename(L, -1), i);
   luaL_addvalue(b);
 }
-- 
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