Update help regarding new -wallet option for relative paths

src/wallet/wallet.cpp

@@ -59,6 +59,7 @@ using namespace libzcash;
 /**
  * Settings
  */
+const char * DEFAULT_WALLET_DAT = "wallet.dat";
 CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
 CAmount maxTxFee = DEFAULT_TRANSACTION_MAXFEE;
 unsigned int nTxConfirmTarget = DEFAULT_TX_CONFIRM_TARGET;

src/wallet/wallet.h

@@ -100,6 +100,8 @@ static const unsigned int DEFAULT_TX_RETENTION_LASTTX = 200;
 //Amount of transactions to delete per run while syncing
 static const int MAX_DELETE_TX_SIZE = 50000;
 
+extern const char * DEFAULT_WALLET_DAT;
+
 class CBlockIndex;
 class CCoinControl;
 class COutput;