Remove unpackNils (fixes Lua ≥5.2 compat)
table.maxn doesn't exist in Lua ≥5.2
Also I haven't found that unpack stops at the first nil (e.g. unpack{nil, 1} == nil, 1) so unpackNils is probably unnecessary.
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table.maxn doesn't exist in Lua ≥5.2
Also I haven't found that unpack stops at the first nil (e.g. unpack{nil, 1} == nil, 1) so unpackNils is probably unnecessary.