[log] updates in TxOrphanage

- Add elapsed time in "remove orphan" log
- Add size in "stored orphan" log
- grammar edit

src/txorphanage.cpp

@@ -47,7 +47,7 @@ bool TxOrphanage::AddTx(const CTransactionRef& tx, NodeId peer)
  m_outpoint_to_orphan_it[txin.prevout].insert(ret.first);
  }
 
- LogPrint(BCLog::TXPACKAGES, "stored orphan tx %s (wtxid=%s) (mapsz %u outsz %u)\n", hash.ToString(), wtxid.ToString(),
+ LogPrint(BCLog::TXPACKAGES, "stored orphan tx %s (wtxid=%s), size: %u (mapsz %u outsz %u)\n", hash.ToString(), wtxid.ToString(), sz,
  m_orphans.size(), m_outpoint_to_orphan_it.size());
  return true;
 }
@@ -84,7 +84,10 @@ int TxOrphanage::EraseTxNoLock(const Wtxid& wtxid)
  it_last->second.list_pos = old_pos;
  }
  const auto& txid = it->second.tx->GetHash();
- LogPrint(BCLog::TXPACKAGES, " removed orphan tx %s (wtxid=%s)\n", txid.ToString(), wtxid.ToString());
+ // Time spent in orphanage = difference between current and entry time.
+ // Entry time is equal to ORPHAN_TX_EXPIRE_TIME earlier than entry's expiry.
+ LogPrint(BCLog::TXPACKAGES, " removed orphan tx %s (wtxid=%s) after %ds\n", txid.ToString(), wtxid.ToString(),
+ GetTime() + ORPHAN_TX_EXPIRE_TIME - it->second.nTimeExpire);
  m_orphan_list.pop_back();
 
  m_orphans.erase(it);
@@ -107,7 +110,7 @@ void TxOrphanage::EraseForPeer(NodeId peer)
  nErased += EraseTxNoLock(wtxid);
  }
  }
- if (nErased > 0) LogPrint(BCLog::TXPACKAGES, "Erased %d orphan tx from peer=%d\n", nErased, peer);
+ if (nErased > 0) LogPrint(BCLog::TXPACKAGES, "Erased %d orphan transaction(s) from peer=%d\n", nErased, peer);
 }
 
 void TxOrphanage::LimitOrphans(unsigned int max_orphans, FastRandomContext& rng)
@@ -230,7 +233,7 @@ void TxOrphanage::EraseForBlock(const CBlock& block)
  for (const auto& orphanHash : vOrphanErase) {
  nErased += EraseTxNoLock(orphanHash);
  }
- LogPrint(BCLog::TXPACKAGES, "Erased %d orphan tx included or conflicted by block\n", nErased);
+ LogPrint(BCLog::TXPACKAGES, "Erased %d orphan transaction(s) included or conflicted by block\n", nErased);
  }
 }