[cmd] default Log.VerbosePrints.Config to true

fixes #3781

cmd/harmony/default.go

@@ -72,7 +72,7 @@ var defaultConfig = harmonyconfig.HarmonyConfig{
 		RotateSize: 100,
 		Verbosity:  3,
 		VerbosePrints: harmonyconfig.LogVerbosePrints{
-			Config: false,
+			Config: true,
 		},
 	},
 	DNSSync: getDefaultDNSSyncConfig(defNetworkType),

cmd/harmony/flags.go

@@ -999,7 +999,7 @@ var (
 	logVerbosePrintsFlag = cli.StringSliceFlag{
 		Name:     "log.verbose-prints",
 		Usage:    "debugging feature. to print verbose internal objects as JSON in log file. available internal objects: config",
-		DefValue: []string{},
+		DefValue: []string{"config"},
 	}
 	// TODO: remove context (this shall not be in the log)
 	logContextIPFlag = cli.StringFlag{

cmd/harmony/flags_test.go

@@ -110,6 +110,9 @@ func TestHarmonyFlags(t *testing.T) {
 						IP:   "8.8.8.8",
 						Port: 9000,
 					},
+					VerbosePrints: harmonyconfig.LogVerbosePrints{
+						Config: true,
+					},
 				},
 				Sys: &harmonyconfig.SysConfig{
 					NtpServer: defaultSysConfig.NtpServer,