In the log I see things like:

    2017-09-13 03:54:33 init message: Rescanning...
    2017-09-13 03:54:33 Rescanning last 68616 blocks (from block 416339)...
    2017-09-13 03:54:40 AddToWallet xxxxx  update
    2017-09-13 03:55:33 Still rescanning. At block 418849. Progress=0.549138

I would be interested to see the wallet file name on each of these log lines.

Would there be any interest in merging such a PR?
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
            CDataStream ssValue(SER_DISK, CLIENT_VERSION);
            int ret = m_batch.ReadAtCursor(pcursor, ssKey, ssValue);
            if (ret == DB_NOTFOUND)
                break;
            else if (ret != 0)
            {
                LogPrintf("Error reading next record from wallet database\n");
                return DBErrors::CORRUPT;
            }
            
            std::string strType, strErr;
            if (!ReadKeyValue(pwallet, ssKey, ssValue, wss, strType, strErr))
            {
                
                
                if (IsKeyType(strType) || strType == "defaultkey") {
                    result = DBErrors::CORRUPT;
                } else if(strType == "flags") {
                    
                    result = DBErrors::TOO_NEW;
                } else {
                    
                    fNoncriticalErrors = true; 
                    if (strType == "tx")
                        
                        gArgs.SoftSetBoolArg("-rescan", true);
                }
            }
            if (!strErr.empty())