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-rw-r--r--src/lauxlib.js4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/lauxlib.js b/src/lauxlib.js
index 84b625e..2f86720 100644
--- a/src/lauxlib.js
+++ b/src/lauxlib.js
@@ -110,7 +110,7 @@ const luaL_traceback = function(L, L1, msg, level) {
let last = lastlevel(L1);
let n1 = last - level > LEVELS1 + LEVELS2 ? LEVELS1 : -1;
if (msg)
- lua.lua_pushstring(L, msg.concat('\n'.charCodeAt(0)));
+ lua.lua_pushfstring(L, lua.to_luastring("%s\n"), msg);
luaL_checkstack(L, 10, null);
lua.lua_pushliteral(L, "stack traceback:");
while (lua.lua_getstack(L1, level++, ar)) {
@@ -119,7 +119,7 @@ const luaL_traceback = function(L, L1, msg, level) {
level = last - LEVELS2 + 1; /* and skip to last ones */
} else {
lua.lua_getinfo(L1, lua.to_luastring("Slnt", true), ar);
- lua.lua_pushstring(L, ['\n'.charCodeAt(0), '\t'.charCodeAt(0)].concat(ar.short_src).concat([':'.charCodeAt(0)]));
+ lua.lua_pushfstring(L, lua.to_luastring("\n\t%s:"), ar.short_src);
if (ar.currentline > 0)
lua.lua_pushliteral(L, `${ar.currentline}:`);
lua.lua_pushliteral(L, " in ");