keep the uppercase letter for flag info

Signed-off-by: yulng <wei.yang@daocloud.io>

cmd/ctr/commands/commands.go

@@ -40,57 +40,57 @@ var (
 	// SnapshotterLabels are cli flags specifying labels which will be added to the new snapshot for container.
 	SnapshotterLabels = cli.StringSliceFlag{
 		Name:  "snapshotter-label",
-		Usage: "labels added to the new snapshot for this container.",
+		Usage: "Labels added to the new snapshot for this container.",
 	}
 
 	// LabelFlag is a cli flag specifying labels
 	LabelFlag = cli.StringSliceFlag{
 		Name:  "label",
-		Usage: "labels to attach to the image",
+		Usage: "Labels to attach to the image",
 	}
 
 	// RegistryFlags are cli flags specifying registry options
 	RegistryFlags = []cli.Flag{
 		cli.BoolFlag{
 			Name:  "skip-verify,k",
-			Usage: "skip SSL certificate validation",
+			Usage: "Skip SSL certificate validation",
 		},
 		cli.BoolFlag{
 			Name:  "plain-http",
-			Usage: "allow connections using plain HTTP",
+			Usage: "Allow connections using plain HTTP",
 		},
 		cli.StringFlag{
 			Name:  "user,u",
-			Usage: "user[:password] Registry user and password",
+			Usage: "User[:password] Registry user and password",
 		},
 		cli.StringFlag{
 			Name:  "refresh",
-			Usage: "refresh token for authorization server",
+			Usage: "Refresh token for authorization server",
 		},
 		cli.StringFlag{
 			Name: "hosts-dir",
 			// compatible with "/etc/docker/certs.d"
-			Usage: "custom hosts configuration directory",
+			Usage: "Custom hosts configuration directory",
 		},
 		cli.StringFlag{
 			Name:  "tlscacert",
-			Usage: "path to TLS root CA",
+			Usage: "Path to TLS root CA",
 		},
 		cli.StringFlag{
 			Name:  "tlscert",
-			Usage: "path to TLS client certificate",
+			Usage: "Path to TLS client certificate",
 		},
 		cli.StringFlag{
 			Name:  "tlskey",
-			Usage: "path to TLS client key",
+			Usage: "Path to TLS client key",
 		},
 		cli.BoolFlag{
 			Name:  "http-dump",
-			Usage: "dump all HTTP request/responses when interacting with container registry",
+			Usage: "Dump all HTTP request/responses when interacting with container registry",
 		},
 		cli.BoolFlag{
 			Name:  "http-trace",
-			Usage: "enable HTTP tracing for registry interactions",
+			Usage: "Enable HTTP tracing for registry interactions",
 		},
 	}
 
@@ -98,120 +98,120 @@ var (
 	ContainerFlags = []cli.Flag{
 		cli.StringFlag{
 			Name:  "config,c",
-			Usage: "path to the runtime-specific spec config file",
+			Usage: "Path to the runtime-specific spec config file",
 		},
 		cli.StringFlag{
 			Name:  "cwd",
-			Usage: "specify the working directory of the process",
+			Usage: "Specify the working directory of the process",
 		},
 		cli.StringSliceFlag{
 			Name:  "env",
-			Usage: "specify additional container environment variables (e.g. FOO=bar)",
+			Usage: "Specify additional container environment variables (e.g. FOO=bar)",
 		},
 		cli.StringFlag{
 			Name:  "env-file",
-			Usage: "specify additional container environment variables in a file(e.g. FOO=bar, one per line)",
+			Usage: "Specify additional container environment variables in a file(e.g. FOO=bar, one per line)",
 		},
 		cli.StringSliceFlag{
 			Name:  "label",
-			Usage: "specify additional labels (e.g. foo=bar)",
+			Usage: "Specify additional labels (e.g. foo=bar)",
 		},
 		cli.StringSliceFlag{
 			Name:  "annotation",
-			Usage: "specify additional OCI annotations (e.g. foo=bar)",
+			Usage: "Specify additional OCI annotations (e.g. foo=bar)",
 		},
 		cli.StringSliceFlag{
 			Name:  "mount",
-			Usage: "specify additional container mount (e.g. type=bind,src=/tmp,dst=/host,options=rbind:ro)",
+			Usage: "Specify additional container mount (e.g. type=bind,src=/tmp,dst=/host,options=rbind:ro)",
 		},
 		cli.BoolFlag{
 			Name:  "net-host",
-			Usage: "enable host networking for the container",
+			Usage: "Enable host networking for the container",
 		},
 		cli.BoolFlag{
 			Name:  "privileged",
-			Usage: "run privileged container",
+			Usage: "Run privileged container",
 		},
 		cli.BoolFlag{
 			Name:  "read-only",
-			Usage: "set the containers filesystem as readonly",
+			Usage: "Set the containers filesystem as readonly",
 		},
 		cli.StringFlag{
 			Name:  "runtime",
-			Usage: "runtime name or absolute path to runtime binary",
+			Usage: "Runtime name or absolute path to runtime binary",
 			Value: defaults.DefaultRuntime,
 		},
 		cli.StringFlag{
 			Name:  "runtime-config-path",
-			Usage: "optional runtime config path",
+			Usage: "Optional runtime config path",
 		},
 		cli.BoolFlag{
 			Name:  "tty,t",
-			Usage: "allocate a TTY for the container",
+			Usage: "Allocate a TTY for the container",
 		},
 		cli.StringSliceFlag{
 			Name:  "with-ns",
-			Usage: "specify existing Linux namespaces to join at container runtime (format '<nstype>:<path>')",
+			Usage: "Specify existing Linux namespaces to join at container runtime (format '<nstype>:<path>')",
 		},
 		cli.StringFlag{
 			Name:  "pid-file",
-			Usage: "file path to write the task's pid",
+			Usage: "File path to write the task's pid",
 		},
 		cli.IntSliceFlag{
 			Name:  "gpus",
-			Usage: "add gpus to the container",
+			Usage: "Add gpus to the container",
 		},
 		cli.BoolFlag{
 			Name:  "allow-new-privs",
-			Usage: "turn off OCI spec's NoNewPrivileges feature flag",
+			Usage: "Turn off OCI spec's NoNewPrivileges feature flag",
 		},
 		cli.Uint64Flag{
 			Name:  "memory-limit",
-			Usage: "memory limit (in bytes) for the container",
+			Usage: "Memory limit (in bytes) for the container",
 		},
 		cli.StringSliceFlag{
 			Name:  "cap-add",
-			Usage: "add Linux capabilities (Set capabilities with 'CAP_' prefix)",
+			Usage: "Add Linux capabilities (Set capabilities with 'CAP_' prefix)",
 		},
 		cli.StringSliceFlag{
 			Name:  "cap-drop",
-			Usage: "drop Linux capabilities (Set capabilities with 'CAP_' prefix)",
+			Usage: "Drop Linux capabilities (Set capabilities with 'CAP_' prefix)",
 		},
 		cli.BoolFlag{
 			Name:  "seccomp",
-			Usage: "enable the default seccomp profile",
+			Usage: "Enable the default seccomp profile",
 		},
 		cli.StringFlag{
 			Name:  "seccomp-profile",
-			Usage: "file path to custom seccomp profile. seccomp must be set to true, before using seccomp-profile",
+			Usage: "File path to custom seccomp profile. seccomp must be set to true, before using seccomp-profile",
 		},
 		cli.StringFlag{
 			Name:  "apparmor-default-profile",
-			Usage: "enable AppArmor with the default profile with the specified name, e.g. \"cri-containerd.apparmor.d\"",
+			Usage: "Enable AppArmor with the default profile with the specified name, e.g. \"cri-containerd.apparmor.d\"",
 		},
 		cli.StringFlag{
 			Name:  "apparmor-profile",
-			Usage: "enable AppArmor with an existing custom profile",
+			Usage: "Enable AppArmor with an existing custom profile",
 		},
 		cli.StringFlag{
 			Name:  "blockio-config-file",
-			Usage: "file path to blockio class definitions. By default class definitions are not loaded.",
+			Usage: "File path to blockio class definitions. By default class definitions are not loaded.",
 		},
 		cli.StringFlag{
 			Name:  "blockio-class",
-			Usage: "name of the blockio class to associate the container with",
+			Usage: "Name of the blockio class to associate the container with",
 		},
 		cli.StringFlag{
 			Name:  "rdt-class",
-			Usage: "name of the RDT class to associate the container with. Specifies a Class of Service (CLOS) for cache and memory bandwidth management.",
+			Usage: "Name of the RDT class to associate the container with. Specifies a Class of Service (CLOS) for cache and memory bandwidth management.",
 		},
 		cli.StringFlag{
 			Name:  "hostname",
-			Usage: "set the container's host name",
+			Usage: "Set the container's host name",
 		},
 		cli.StringFlag{
 			Name:  "user,u",
-			Usage: "username or user id, group optional (format: <name|uid>[:<group|gid>])",
+			Usage: "Username or user id, group optional (format: <name|uid>[:<group|gid>])",
 		},
 	}
 )