message: [Logging] Add missing format specifier.
diff: @@ -3015,7 +3015,7 @@ bool AnonWallet::PickHidingOutputs(std::vector<std::vector<int64_t> > &vMI, size
  const static size_t nMaxTries = 1000;
  for (j = 0; j < nMaxTries; ++j) {
  if (nLastRCTOutIndex <= nMinIndex) {
  - sError = strprintf("Not enough anonymous outputs exist, min: last: %d, required: %d.",
  + sError = strprintf("Not enough anonymous outputs exist, min: %d, last: %d, required: %d.",
  nMinIndex, nLastRCTOutIndex, nInputs * nRingSize);
  return error("%s: %s", __func__, sError);
  }
  