fix: fix the position of the format flag

cmd/cmd_head.go

@@ -19,6 +19,14 @@ func cmdHeadObj() *cli.Command {
 send headObject txn to chain and fetch object info on greenfield chain
 Examples:
 $ gnfd-cmd object head gnfd://bucket-name/object-name`,
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:    formatFlag,
+				Aliases: []string{"f"},
+				Value:   defaultFormat,
+				Usage:   "return the meta with the format of plaintxt or json",
+			},
+		},
 	}
 }
 
@@ -33,6 +41,14 @@ func cmdHeadBucket() *cli.Command {
 send headBucket txn to chain and fetch bucket info on greenfield chain
 Examples:
 $ gnfd-cmd bucket head gnfd://bucket-name`,
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:    formatFlag,
+				Aliases: []string{"f"},
+				Value:   defaultFormat,
+				Usage:   "return the meta with the format of plaintxt or json",
+			},
+		},
 	}
 }
 
@@ -53,6 +69,12 @@ $ gnfd-cmd group head --groupOwner  group-name`,
 				Value: "",
 				Usage: "need set the owner address if you are not the owner of the group",
 			},
+			&cli.StringFlag{
+				Name:    formatFlag,
+				Aliases: []string{"f"},
+				Value:   defaultFormat,
+				Usage:   "return the meta with the format of plaintxt or json",
+			},
 		},
 	}
 }

cmd/main.go

@@ -52,12 +52,6 @@ func main() {
 			Aliases: []string{"p"},
 			Usage:   "password file for encrypting and decoding the private key",
 		},
-		&cli.StringFlag{
-			Name:    formatFlag,
-			Aliases: []string{"f"},
-			Value:   defaultFormat,
-			Usage:   "return format of plaintxt or json",
-		},
 		&cli.StringFlag{
 			Name:    configFlag,
 			Aliases: []string{"c"},