RPCAuth Detection in Logs

This adds a log entry for when RPCAuth is used.

Update httprpc.cpp

src/httprpc.cpp

@@ -215,7 +215,7 @@ static bool InitRPCAuthentication()
 {
     if (gArgs.GetArg("-rpcpassword", "") == "")
     {
-        LogPrintf("No rpcpassword set - using random cookie authentication\n");
+        LogPrintf("No rpcpassword set - using random cookie authentication.\n");
         if (!GenerateAuthCookie(&strRPCUserColonPass)) {
             uiInterface.ThreadSafeMessageBox(
                 _("Error: A fatal internal error occurred, see debug.log for details"), // Same message as AbortNode
@@ -226,6 +226,10 @@ static bool InitRPCAuthentication()
         LogPrintf("Config options rpcuser and rpcpassword will soon be deprecated. Locally-run instances may remove rpcuser to use cookie-based auth, or may be replaced with rpcauth. Please see share/rpcuser for rpcauth auth generation.\n");
         strRPCUserColonPass = gArgs.GetArg("-rpcuser", "") + ":" + gArgs.GetArg("-rpcpassword", "");
     }
+    if (gArgs.GetArg("-rpcauth","") != "")
+    {
+        LogPrintf("Using rpcauth authentication.\n");
+    }
     return true;
 }