From da37ac9c7894186a0e2e0e6f1f5f00b825fd1555 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 27 Dec 2018 14:19:53 -0200
Subject: Detail

Slightly better error message for invalid conversions in 'string.format'.
---
 lstrlib.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'lstrlib.c')

diff --git a/lstrlib.c b/lstrlib.c
index e9c60c0f..dde868c0 100644
--- a/lstrlib.c
+++ b/lstrlib.c
@@ -1180,8 +1180,7 @@ static int str_format (lua_State *L) {
           break;
         }
         default: {  /* also treat cases 'pnLlh' */
-          return luaL_error(L, "invalid option '%%%c' to 'format'",
-                               *(strfrmt - 1));
+          return luaL_error(L, "invalid conversion '%s' to 'format'", form);
         }
       }
       lua_assert(nb < MAX_ITEM);
-- 
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