message: fix verification progress calculation for main chain
diff: @@ -154,11 +154,12 @@ public:
  };
  chainTxData = ChainTxData{
  - // Data as of block 0000000000000000002d6cca6761c99b3c2e936f9a0e304b7c7651a993f461de (height 506081).
  - 1516903077, // * UNIX timestamp of last known number of transactions
  - 295363220, // * total number of transactions between genesis and that timestamp
  + // Data as of block d25bd7cee527575afcf32d69e0438161899257f911fc507e71c78526e88b3e13 (height 401725).
  + 1544091904, // * UNIX timestamp of last known number of transactions
  + 1561895, // * total number of transactions between genesis and that timestamp
  // (the tx=... number in the SetBestChain debug.log lines)
  - 3.5 // * estimated number of transactions per second after that timestamp
  + 0.00786 // * estimated number of transactions per second after that timestamp
  + // 1561895/(1544091904-1345400356) = 0.00786
  };
  }
  };
  