message: use error() instead of LogPrintf()
diff: @@ -542,9 +542,8 @@ bool CMasternodeBroadcast::CheckAndUpdate(int& nDos)
  // unless someone is doing something fishy
  // (mapSeenMasternodeBroadcast in CMasternodeMan::ProcessMessage should filter legit duplicates)
  if(pmn->sigTime >= sigTime) {
  - LogPrintf("CMasternodeBroadcast::CheckAndUpdate - Bad sigTime %d for Masternode %20s %105s (existing broadcast is at %d)\n",
  + return error("CMasternodeBroadcast::CheckAndUpdate - Bad sigTime %d for Masternode %20s %105s (existing broadcast is at %d)",
  sigTime, addr.ToString(), vin.ToString(), pmn->sigTime);
  - return false;
  }
  // masternode is not enabled yet/already, nothing to update
  @@ -664,13 +663,11 @@ bool CMasternodeBroadcast::Sign(CKey& keyCollateralAddress)
  std::string strMessage = GetStrMessage();
  if (!obfuScationSigner.SignMessage(strMessage, errorMessage, sig, keyCollateralAddress)) {
  - LogPrintf("CMasternodeBroadcast::Sign() - Error: %s\n", errorMessage);
  - return false;
  + return error("CMasternodeBroadcast::Sign() - Error: %s", errorMessage);
  }
  if (!obfuScationSigner.VerifyMessage(pubKeyCollateralAddress, sig, strMessage, errorMessage)) {
  - LogPrintf("CMasternodeBroadcast::Sign() - Error: %s\n", errorMessage);
  - return false;
  + return error("CMasternodeBroadcast::Sign() - Error: %s", errorMessage);
  }
  return true;
  @@ -682,8 +679,7 @@ bool CMasternodeBroadcast::VerifySignature()
  std::string strMessage = GetStrMessage();
  if(!obfuScationSigner.VerifyMessage(pubKeyCollateralAddress, sig, strMessage, errorMessage)) {
  - LogPrintf("CMasternodeBroadcast::VerifySignature() - Error: %s\n", errorMessage);
  - return false;
  + return error("CMasternodeBroadcast::VerifySignature() - Error: %s", errorMessage);
  }
  return true;
  @@ -746,9 +742,8 @@ bool CMasternodePing::VerifySignature(CPubKey& pubKeyMasternode, int &nDos) {
  std::string errorMessage = "";
  if(!obfuScationSigner.VerifyMessage(pubKeyMasternode, vchSig, strMessage, errorMessage)){
  - LogPrintf("CMasternodePing::VerifySignature - Got bad Masternode ping signature %s Error: %s\n", vin.ToString(), errorMessage);
  nDos = 33;
  - return false;
  + return error("CMasternodePing::VerifySignature - Got bad Masternode ping signature %s Error: %s", vin.ToString(), errorMessage);
  }
  return true;
  }
  