Linsir

It seems like a problem of [luaposix](https://github.com/luaposix/luaposix/) and look at the [std/normalize/_strict.lua](https://github.com/lua-stdlib/normalize/blob/master/lib/std/normalize/_strict.lua) ``` local setfenv = rawget(_G, 'setfenv') or function() end local _ENV = { _debug = require 'std._debug', pcall...

Thanks, I got it.

yes, I have updated the luaposix ,but get this error. ``` *2 lua entry thread aborted: runtime error: /usr/share/lua/5.1/posix/deprecated.lua:696: attempt to call global 'argscheck' (a nil value) ```