use uppercase letters for flag usage

Signed-off-by: panguicai008 <guicai.pan@daocloud.io>

cmd/ctr/commands/tasks/attach.go

@@ -26,7 +26,7 @@ import (
 
 var attachCommand = cli.Command{
 	Name:      "attach",
-	Usage:     "attach to the IO of a running container",
+	Usage:     "Attach to the IO of a running container",
 	ArgsUsage: "CONTAINER",
 	Action: func(context *cli.Context) error {
 		client, ctx, cancel, err := commands.NewClient(context)

cmd/ctr/commands/tasks/checkpoint.go

@@ -30,7 +30,7 @@ import (
 
 var checkpointCommand = cli.Command{
 	Name:      "checkpoint",
-	Usage:     "checkpoint a container",
+	Usage:     "Checkpoint a container",
 	ArgsUsage: "[flags] CONTAINER",
 	Flags: []cli.Flag{
 		cli.BoolFlag{

cmd/ctr/commands/tasks/delete.go

@@ -28,7 +28,7 @@ import (
 
 var deleteCommand = cli.Command{
 	Name:      "delete",
-	Usage:     "delete one or more tasks",
+	Usage:     "Delete one or more tasks",
 	ArgsUsage: "CONTAINER [CONTAINER, ...]",
 	Aliases:   []string{"del", "remove", "rm"},
 	Flags: []cli.Flag{

cmd/ctr/commands/tasks/exec.go

@@ -33,7 +33,7 @@ import (
 
 var execCommand = cli.Command{
 	Name:           "exec",
-	Usage:          "execute additional processes in an existing container",
+	Usage:          "Execute additional processes in an existing container",
 	ArgsUsage:      "[flags] CONTAINER CMD [ARG...]",
 	SkipArgReorder: true,
 	Flags: []cli.Flag{

cmd/ctr/commands/tasks/kill.go

@@ -63,7 +63,7 @@ func RemoveCniNetworkIfExist(ctx context.Context, container containerd.Container
 
 var killCommand = cli.Command{
 	Name:      "kill",
-	Usage:     "signal a container (default: SIGTERM)",
+	Usage:     "Signal a container (default: SIGTERM)",
 	ArgsUsage: "[flags] CONTAINER",
 	Flags: []cli.Flag{
 		cli.StringFlag{

cmd/ctr/commands/tasks/list.go

@@ -28,7 +28,7 @@ import (
 
 var listCommand = cli.Command{
 	Name:      "list",
-	Usage:     "list tasks",
+	Usage:     "List tasks",
 	Aliases:   []string{"ls"},
 	ArgsUsage: "[flags]",
 	Flags: []cli.Flag{

cmd/ctr/commands/tasks/metrics.go

@@ -40,7 +40,7 @@ const (
 
 var metricsCommand = cli.Command{
 	Name:      "metrics",
-	Usage:     "get a single data point of metrics for a task with the built-in Linux runtime",
+	Usage:     "Get a single data point of metrics for a task with the built-in Linux runtime",
 	ArgsUsage: "CONTAINER",
 	Aliases:   []string{"metric"},
 	Flags: []cli.Flag{

cmd/ctr/commands/tasks/pause.go

@@ -23,7 +23,7 @@ import (
 
 var pauseCommand = cli.Command{
 	Name:      "pause",
-	Usage:     "pause an existing container",
+	Usage:     "Pause an existing container",
 	ArgsUsage: "CONTAINER",
 	Action: func(context *cli.Context) error {
 		client, ctx, cancel, err := commands.NewClient(context)

cmd/ctr/commands/tasks/ps.go

@@ -29,7 +29,7 @@ import (
 
 var psCommand = cli.Command{
 	Name:      "ps",
-	Usage:     "list processes for container",
+	Usage:     "List processes for container",
 	ArgsUsage: "CONTAINER",
 	Action: func(context *cli.Context) error {
 		id := context.Args().First()

cmd/ctr/commands/tasks/resume.go

@@ -23,7 +23,7 @@ import (
 
 var resumeCommand = cli.Command{
 	Name:      "resume",
-	Usage:     "resume a paused container",
+	Usage:     "Resume a paused container",
 	ArgsUsage: "CONTAINER",
 	Action: func(context *cli.Context) error {
 		client, ctx, cancel, err := commands.NewClient(context)

cmd/ctr/commands/tasks/start.go

@@ -29,7 +29,7 @@ import (
 
 var startCommand = cli.Command{
 	Name:      "start",
-	Usage:     "start a container that has been created",
+	Usage:     "Start a container that has been created",
 	ArgsUsage: "CONTAINER",
 	Flags: append(platformStartFlags, []cli.Flag{
 		cli.BoolFlag{

cmd/ctr/commands/tasks/tasks.go

@@ -29,7 +29,7 @@ type resizer interface {
 // Command is the cli command for managing tasks
 var Command = cli.Command{
 	Name:    "tasks",
-	Usage:   "manage tasks",
+	Usage:   "Manage tasks",
 	Aliases: []string{"t", "task"},
 	Subcommands: []cli.Command{
 		attachCommand,