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?
WALLET_FLAG_DISABLE_PRIVATE_KEYS = (1ULL << 32),
};
static constexpr uint64_t g_known_wallet_flags = WALLET_FLAG_DISABLE_PRIVATE_KEYS;
class CKeyPool
{
public:
    int64_t nTime;
    CPubKey vchPubKey;
    bool fInternal; 
    bool m_pre_split; 
    CKeyPool();
    CKeyPool(const CPubKey& vchPubKeyIn, bool internalIn);
    ADD_SERIALIZE_METHODS;
    template <typename Stream, typename Operation>
    inline void SerializationOp(Stream& s, Operation ser_action) {