Merge c0e0e0a9d5 into merged_master (Elements PR #818)

src/validation.cpp

@@ -5505,6 +5505,7 @@ 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").translated);
         // During init try until a non-RPC_IN_WARMUP result
         while (true) {
             try {