Fix warning reported by LuaCheck (#563)

David Leal

2020-09-05 11f2b4f4b317a25972733e3d3fe9f2dc6ce31c6a

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default
pipeworks
technic_worldgen
basic_materials
bucket?
screwdriver?
mesecons?
mesecons_mvps?
digilines?
digiline_remote?
intllib?
unified_inventory?
vector_extras?
dye?