Make sure LogPrintf strings are line-terminated

Fix the cases where LogPrint[f] was accidentally called without line
terminator, which resulted in concatenated log lines.

(see e.g. #6492)

src/main.cpp

@@ -3501,7 +3501,7 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp)
                     }
                 }
             } catch (const std::exception& e) {
-                LogPrintf("%s: Deserialize or I/O error - %s", __func__, e.what());
+                LogPrintf("%s: Deserialize or I/O error - %s\n", __func__, e.what());
             }
         }
     } catch (const std::runtime_error& e) {

src/policy/fees.cpp

@@ -249,7 +249,7 @@ unsigned int TxConfirmStats::NewTx(unsigned int nBlockHeight, double val)
     unsigned int bucketindex = bucketMap.lower_bound(val)->second;
     unsigned int blockIndex = nBlockHeight % unconfTxs.size();
     unconfTxs[blockIndex][bucketindex]++;
-    LogPrint("estimatefee", "adding to %s\n", dataTypeString);
+    LogPrint("estimatefee", "adding to %s", dataTypeString);
     return bucketindex;
 }
 
@@ -390,8 +390,9 @@ void CBlockPolicyEstimator::processTransaction(const CTxMemPoolEntry& entry, boo
         mapMemPoolTxs[hash].bucketIndex = feeStats.NewTx(txHeight, (double)feeRate.GetFeePerK());
     }
     else {
-        LogPrint("estimatefee", "not adding\n");
+        LogPrint("estimatefee", "not adding");
     }
+    LogPrint("estimatefee", "\n");
 }
 
 void CBlockPolicyEstimator::processBlockTx(unsigned int nBlockHeight, const CTxMemPoolEntry& entry)

src/rpcserver.cpp

@@ -755,14 +755,14 @@ void StopRPCThreads()
     {
         acceptor->cancel(ec);
         if (ec)
-            LogPrintf("%s: Warning: %s when cancelling acceptor", __func__, ec.message());
+            LogPrintf("%s: Warning: %s when cancelling acceptor\n", __func__, ec.message());
     }
     rpc_acceptors.clear();
     BOOST_FOREACH(const PAIRTYPE(std::string, boost::shared_ptr<deadline_timer>) &timer, deadlineTimers)
     {
         timer.second->cancel(ec);
         if (ec)
-            LogPrintf("%s: Warning: %s when cancelling timer", __func__, ec.message());
+            LogPrintf("%s: Warning: %s when cancelling timer\n", __func__, ec.message());
     }
     deadlineTimers.clear();
 

src/txmempool.cpp

@@ -341,7 +341,7 @@ CTxMemPool::WriteFeeEstimates(CAutoFile& fileout) const
         minerPolicyEstimator->Write(fileout);
     }
     catch (const std::exception&) {
-        LogPrintf("CTxMemPool::WriteFeeEstimates(): unable to write policy estimator data (non-fatal)");
+        LogPrintf("CTxMemPool::WriteFeeEstimates(): unable to write policy estimator data (non-fatal)\n");
         return false;
     }
     return true;
@@ -360,7 +360,7 @@ CTxMemPool::ReadFeeEstimates(CAutoFile& filein)
         minerPolicyEstimator->Read(filein);
     }
     catch (const std::exception&) {
-        LogPrintf("CTxMemPool::ReadFeeEstimates(): unable to read policy estimator data (non-fatal)");
+        LogPrintf("CTxMemPool::ReadFeeEstimates(): unable to read policy estimator data (non-fatal)\n");
         return false;
     }
     return true;

src/wallet/crypter.cpp

@@ -186,7 +186,7 @@ bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
         }
         if (keyPass && keyFail)
         {
-            LogPrintf("The wallet is probably corrupted: Some keys decrypt but not all.");
+            LogPrintf("The wallet is probably corrupted: Some keys decrypt but not all.\n");
             assert(false);
         }
         if (keyFail || !keyPass)

src/wallet/wallet.cpp

@@ -2001,7 +2001,7 @@ bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
             if (!wtxNew.AcceptToMemoryPool(false))
             {
                 // This must not fail. The transaction has already been signed and recorded.
-                LogPrintf("CommitTransaction(): Error: Transaction not valid");
+                LogPrintf("CommitTransaction(): Error: Transaction not valid\n");
                 return false;
             }
             wtxNew.RelayWalletTransaction();