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On Thu, Feb 25, 2010 at 4:13 PM, steve donovan
<> wrote:
> Using _G specially refers to the global namespace; _ENV may or may not.
Using _G refers to _ENV._G, hence if you've changed _ENV, then _G
refers to the global namespace if and only if you added a _G field to
the custom _ENV pointing back to the original value of _ENV. If you
haven't changed _ENV, then _G and _ENV are the same thing anyway.