core, eth, cmd: polish

cmd/utils/flags.go

@@ -1732,9 +1732,7 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 			cfg.EthDiscoveryURLs = SplitAndTrim(urls)
 		}
 	}
-
 	if ctx.Bool(StateSizeTrackingFlag.Name) {
-		log.Info("Enabling state size metrics")
 		cfg.EnableStateSizeTracking = true
 	}
 	// Override any default configs for hard coded networks.

core/blockchain.go

@@ -536,7 +536,7 @@ func NewBlockChain(db ethdb.Database, genesis *Genesis, engine consensus.Engine,
 		stateSizer, err := state.NewSizeTracker(bc.db, bc.triedb)
 		if err == nil {
 			bc.stateSizer = stateSizer
-			log.Info("Initialized state sizer")
+			log.Info("Enabled state size metrics")
 		} else {
 			log.Info("Failed to setup size tracker", "err", err)
 		}

eth/api_debug.go

@@ -470,7 +470,7 @@ func (api *DebugAPI) StateSize(blockHashOrNumber *rpc.BlockNumberOrHash) (interf
 	if stats == nil {
 		var s string
 		if blockHashOrNumber == nil {
-			s = "latest"
+			s = "chain head"
 		} else {
 			s = blockHashOrNumber.String()
 		}