clarify listunspent amount description

src/wallet/rpcwallet.cpp

@@ -2402,7 +2402,7 @@ UniValue listunspent(const JSONRPCRequest& request)
             "    \"address\" : \"address\",    (string) the bitcoin address\n"
             "    \"account\" : \"account\",    (string) DEPRECATED. The associated account, or \"\" for the default account\n"
             "    \"scriptPubKey\" : \"key\",   (string) the script key\n"
-            "    \"amount\" : x.xxx,         (numeric) the transaction amount in " + CURRENCY_UNIT + "\n"
+            "    \"amount\" : x.xxx,         (numeric) the transaction output amount in " + CURRENCY_UNIT + "\n"
             "    \"confirmations\" : n,      (numeric) The number of confirmations\n"
             "    \"redeemScript\" : n        (string) The redeemScript if scriptPubKey is P2SH\n"
             "    \"spendable\" : xxx,        (bool) Whether we have the private keys to spend this output\n"