Fix wrong keypool internal size in RPC getwalletinfo help

src/wallet/rpcwallet.cpp

@@ -2424,8 +2424,8 @@ UniValue getwalletinfo(const JSONRPCRequest& request)
             "  \"immature_balance\": xxxxxx,      (numeric) the total immature balance of the wallet in " + CURRENCY_UNIT + "\n"
             "  \"txcount\": xxxxxxx,              (numeric) the total number of transactions in the wallet\n"
             "  \"keypoololdest\": xxxxxx,         (numeric) the timestamp (seconds since Unix epoch) of the oldest pre-generated key in the key pool\n"
-            "  \"keypoolsize\": xxxx,             (numeric) how many new keys are pre-generated\n"
-            "  \"keypoolsize_hd_internal\": xxxx, (numeric) how many new keys are pre-generated for internal use (change outputs, 10% of the -keypoolsize target, only appears if HD is enabled)\n"
+            "  \"keypoolsize\": xxxx,             (numeric) how many new keys are pre-generated (excluding internal-/chnage-output keys)\n"
+            "  \"keypoolsize_hd_internal\": xxxx, (numeric) how many new keys are pre-generated for internal use (change outputs, 20% of the -keypoolsize target, only appears if HD is enabled)\n"
             "  \"unlocked_until\": ttt,           (numeric) the timestamp in seconds since epoch (midnight Jan 1 1970 GMT) that the wallet is unlocked for transfers, or 0 if the wallet is locked\n"
             "  \"paytxfee\": x.xxxx,              (numeric) the transaction fee configuration, set in " + CURRENCY_UNIT + "/kB\n"
             "  \"hdmasterkeyid\": \"<hash160>\"     (string) the Hash160 of the HD master pubkey\n"