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-rw-r--r--src/lauxlib.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lauxlib.js b/src/lauxlib.js
index 9813095..90cff5c 100644
--- a/src/lauxlib.js
+++ b/src/lauxlib.js
@@ -89,7 +89,7 @@ const luaL_argerror = function(L, arg, extramsg) {
}
if (ar.name === null)
- ar.name = pushglobalfuncname(L, ar) ? lapi.lua_tostring(L, -1) : "?";
+ ar.name = pushglobalfuncname(L, ar) ? lapi.lua_tostring(L, -1) : [lua.char["?"]];
return luaL_error(L, lua.to_luastring(`bad argument #${arg} to '${lobject.jsstring(ar.name)}' (${lobject.jsstring(extramsg)})`));
};