make socket and ffi nonlocal
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@ -1,7 +1,7 @@
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-- External requirements
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local socket = require("socket")
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local ffi = require("ffi")
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socket = require("socket")
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ffi = require("ffi")
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-- Disallow access to undefined global variables (helps detect errors)
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assert(getmetatable(_G)==nil, "_G already has a metatable")
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