lua net.interfaces(): fix mac addresses
Only the first byte was being shown since 3ab77332. I can't see at all why this part was changed; the buffer is (and was) way overlong for this, so writing one zero byte just after the end is OK.
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Only the first byte was being shown since 3ab77332. I can't see at all why this part was changed; the buffer is (and was) way overlong for this, so writing one zero byte just after the end is OK.