message: allow staking=0 to disable minting
diff: @@ -533,7 +533,7 @@ void PoSMiner(CWallet *pwallet)
  std::string strMintDisabledMessage = _("Info: Minting disabled by 'nominting' option.");
  std::string strMintBlockMessage = _("Info: Minting suspended due to block creation failure.");
  std::string strMintEmpty = _("");
  - if (!gArgs.GetBoolArg("-minting", true))
  + if (!gArgs.GetBoolArg("-minting", true) || !gArgs.GetBoolArg("-staking", true))
  {
  strMintWarning = strMintDisabledMessage;
  LogPrintf("proof-of-stake minter disabled\n");
  