Re: Lua 5.1 (work1) now available

[Roberto Ierusalimschy <roberto@...>]

> A local variable named 'arg' is always created, but as long as you
> never reference it, the table it used to refer to is not created.

Almost this. Instead of checking whether `arg´ is used, Lua checks
whether `...' is not used. (It was easier to implement :)

-- Roberto