Place the mainchain RPC warmup message in a better place

Author: stevenroose

src/init.cpp

@@ -1884,7 +1884,6 @@ bool AppInitMain(InitInterfaces& interfaces)
     SetRPCWarmupFinished();
 
     // ELEMENTS:
-    uiInterface.InitMessage(_("Awaiting mainchain RPC warmup"));
     if (!MainchainRPCCheck(true)) { //Initial check only
         const std::string err_msg = "ERROR: elements is set to verify pegins but cannot get valid response from the mainchain daemon. Please check debug.log for more information.\n\nIf you haven't setup a bitcoind please get the latest stable version from https://bitcoincore.org/en/download/ or if you do not need to validate pegins set in your elements configuration validatepegin=0";
         // We fail immediately if this node has RPC server enabled

src/validation.cpp

@@ -5294,6 +5294,7 @@ bool MainchainRPCCheck(const bool init)
 
     // Next, check for working and valid rpc
     if (gArgs.GetBoolArg("-validatepegin", Params().GetConsensus().has_parent_chain)) {
+        uiInterface.InitMessage(_("Awaiting mainchain RPC warmup"));
         // During init try until a non-RPC_IN_WARMUP result
         while (true) {
             try {