message: nit: var formatting
  Whoops
diff: @@ -28,14 +28,14 @@ var (
  ConfigUpdateEventVersion0 = common.Hash{}
  )
  +var (
  // A left-padded uint256 equal to 32.
  -var OneWordUint = common.Hash{31: 32}
  -
  + OneWordUint = common.Hash{31: 32}
  // 24 zero bytes (the padding for a uint64 in a 32 byte word)
  -var Uint64Padding = make([]byte, 24)
  -
  + Uint64Padding = make([]byte, 24)
  // 12 zero bytes (the padding for an Ethereum address in a 32 byte word)
  -var AddressPadding = make([]byte, 12)
  + AddressPadding = make([]byte, 12)
  +)
  var logger = log.New("derive", "system_config")
  