Changes
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initials[ship_index] = new_initials[ship_index]
initials[ship_index] = new_initials[ship_index]
else
else
if new_initials[ship_index] == nil then
error(table.concat(ships, ", "))
end
initials[ship_index] = initials[ship_index] .. new_initials[ship_index]
initials[ship_index] = initials[ship_index] .. new_initials[ship_index]
end
end