message: [Trivial] CStakeKernel: Log failures when getting old modifier
diff: @@ -33,7 +33,8 @@ CStakeKernel::CStakeKernel(const CBlockIndex* const pindexPrev, CStakeInput* sta
  {
  if (!Params().GetConsensus().IsStakeModifierV2(pindexPrev->nHeight + 1)) { // Modifier v1
  uint64_t nStakeModifier = 0;
  - GetOldStakeModifier(stakeInput, nStakeModifier);
  + if (!GetOldStakeModifier(stakeInput, nStakeModifier))
  + LogPrintf("%s : ERROR: Failed to get kernel stake modifier\n", __func__);
  stakeModifier << nStakeModifier;
  } else { // Modifier v2
  stakeModifier << pindexPrev->GetStakeModifierV2();
  