Start using -zdebug so we don't scare normal users with all this output

src/coins.cpp

@@ -334,12 +334,13 @@ void CCoinsViewCache::PopAnchor(const uint256 &newrt, ShieldedType type) {
 }
 
 void CCoinsViewCache::SetNullifiers(const CTransaction& tx, bool spent) {
-    LogPrintf("%s: spent=%d\n", __FUNCTION__, spent);
+
     for (const SpendDescription &spendDescription : tx.vShieldedSpend) {
         std::pair<CNullifiersMap::iterator, bool> ret = cacheSaplingNullifiers.insert(std::make_pair(spendDescription.nullifier, CNullifiersCacheEntry()));
         ret.first->second.entered = spent;
         ret.first->second.flags |= CNullifiersCacheEntry::DIRTY;
-        LogPrintf("%s: Inserted nullifier=%s into Sapling nullifier cache\n", __FUNCTION__, spendDescription.nullifier.GetHex().c_str());
+        if (fZdebug)
+           LogPrintf("%s: Inserted spent=%d nullifier=%s into Sapling nullifier cache\n", __FUNCTION__, spent, spendDescription.nullifier.GetHex().c_str());
     }
 }
 

src/txdb.cpp

@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
-// Copyright (c) 2019      The Hush developers
+// Copyright (c) 2019-2020 The Hush developers
 
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
@@ -287,12 +287,14 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
 
 bool CBlockTreeDB::WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo) {
     CDBBatch batch(*this);
-	fprintf(stderr, "%s: Writing block files\n", __FUNCTION__);
+    if (fZdebug)
+	    fprintf(stderr, "%s: Writing block files\n", __FUNCTION__);
     for (std::vector<std::pair<int, const CBlockFileInfo*> >::const_iterator it=fileInfo.begin(); it != fileInfo.end(); it++) {
         batch.Write(make_pair(DB_BLOCK_FILES, it->first), *it->second);
     }
     batch.Write(DB_LAST_BLOCK, nLastFile);
-	fprintf(stderr, "%s: Writing block index\n", __FUNCTION__);
+    if (fZdebug)
+	    fprintf(stderr, "%s: Writing block index\n", __FUNCTION__);
     for (std::vector<const CBlockIndex*>::const_iterator it=blockinfo.begin(); it != blockinfo.end(); it++) {
         batch.Write(make_pair(DB_BLOCK_INDEX, (*it)->GetBlockHash()), CDiskBlockIndex(*it));
     }