message: Fixing Windows build
diff: @@ -73,7 +73,7 @@ void IncomingFundNotifier::check()
  continue;
  }
  - credit += std::max(0L, wtx->second.GetAvailableCredit() - wtx->second.GetDebit(ISMINE_ALL));
  + credit += std::max(CAmount(0), wtx->second.GetAvailableCredit() - wtx->second.GetDebit(ISMINE_ALL));
  if (wtx->second.GetImmatureCredit() > 0) {
  immatures.push_back(tx);
  