Add hashFinalSaplingRoot to getblockheader and getblock output

src/rpcblockchain.cpp

@@ -108,6 +108,7 @@ UniValue blockheaderToJSON(const CBlockIndex* blockindex)
     result.push_back(Pair("height", blockindex->nHeight));
     result.push_back(Pair("version", blockindex->nVersion));
     result.push_back(Pair("merkleroot", blockindex->hashMerkleRoot.GetHex()));
+    result.push_back(Pair("finalsaplingroot", blockindex->hashFinalSaplingRoot.GetHex()));
     result.push_back(Pair("time", (int64_t)blockindex->nTime));
     result.push_back(Pair("nonce", blockindex->nNonce.GetHex()));
     result.push_back(Pair("solution", HexStr(blockindex->nSolution)));
@@ -136,6 +137,7 @@ UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool tx
     result.push_back(Pair("height", blockindex->nHeight));
     result.push_back(Pair("version", block.nVersion));
     result.push_back(Pair("merkleroot", block.hashMerkleRoot.GetHex()));
+    result.push_back(Pair("finalsaplingroot", block.hashFinalSaplingRoot.GetHex()));
     UniValue txs(UniValue::VARR);
     BOOST_FOREACH(const CTransaction&tx, block.vtx)
     {
@@ -352,6 +354,7 @@ UniValue getblockheader(const UniValue& params, bool fHelp)
             "  \"height\" : n,          (numeric) The block height or index\n"
             "  \"version\" : n,         (numeric) The block version\n"
             "  \"merkleroot\" : \"xxxx\", (string) The merkle root\n"
+            "  \"finalsaplingroot\" : \"xxxx\", (string) The root of the Sapling commitment tree after applying this block\n"
             "  \"time\" : ttt,          (numeric) The block time in seconds since epoch (Jan 1 1970 GMT)\n"
             "  \"nonce\" : n,           (numeric) The nonce\n"
             "  \"bits\" : \"1d00ffff\", (string) The bits\n"
@@ -412,6 +415,7 @@ UniValue getblock(const UniValue& params, bool fHelp)
             "  \"height\" : n,          (numeric) The block height or index (same as provided height)\n"
             "  \"version\" : n,         (numeric) The block version\n"
             "  \"merkleroot\" : \"xxxx\", (string) The merkle root\n"
+            "  \"finalsaplingroot\" : \"xxxx\", (string) The root of the Sapling commitment tree after applying this block\n"
             "  \"tx\" : [               (array of string) The transaction ids\n"
             "     \"transactionid\"     (string) The transaction id\n"
             "     ,...\n"