Change format of log2_work for uniform output (zero-padded)

Author: jamesgmorgan

src/validation.cpp

@@ -1430,12 +1430,12 @@ void static InvalidChainFound(CBlockIndex* pindexNew) EXCLUSIVE_LOCKS_REQUIRED(c
         pindexBestHeader = ::ChainActive().Tip();
     }
 
-    LogPrintf("%s: invalid block=%s  height=%d  log2_work=%.8g  date=%s\n", __func__,
+    LogPrintf("%s: invalid block=%s  height=%d  log2_work=%f  date=%s\n", __func__,
       pindexNew->GetBlockHash().ToString(), pindexNew->nHeight,
       log(pindexNew->nChainWork.getdouble())/log(2.0), FormatISO8601DateTime(pindexNew->GetBlockTime()));
     CBlockIndex *tip = ::ChainActive().Tip();
     assert (tip);
-    LogPrintf("%s:  current best=%s  height=%d  log2_work=%.8g  date=%s\n", __func__,
+    LogPrintf("%s:  current best=%s  height=%d  log2_work=%f  date=%s\n", __func__,
       tip->GetBlockHash().ToString(), ::ChainActive().Height(), log(tip->nChainWork.getdouble())/log(2.0),
       FormatISO8601DateTime(tip->GetBlockTime()));
     CheckForkWarningConditions();
@@ -2485,7 +2485,7 @@ void static UpdateTip(const CBlockIndex* pindexNew, const CChainParams& chainPar
         if (nUpgraded > 0)
             AppendWarning(warning_messages, strprintf(_("%d of last 100 blocks have unexpected version"), nUpgraded));
     }
-    LogPrintf("%s: new best=%s height=%d version=0x%08x log2_work=%.8g tx=%lu date='%s' progress=%f cache=%.1fMiB(%utxo)%s\n", __func__,
+    LogPrintf("%s: new best=%s height=%d version=0x%08x log2_work=%f tx=%lu date='%s' progress=%f cache=%.1fMiB(%utxo)%s\n", __func__,
       pindexNew->GetBlockHash().ToString(), pindexNew->nHeight, pindexNew->nVersion,
       log(pindexNew->nChainWork.getdouble())/log(2.0), (unsigned long)pindexNew->nChainTx,
       FormatISO8601DateTime(pindexNew->GetBlockTime()),