Sync ops.md, update CLI --help output to be consistent in descriptions

Signed-off-by: Alex Rodriguez <alexrodriguez@ibm.com>

cmd/containerd-stress/main.go

@@ -62,6 +62,11 @@ func init() {
 	if err := setRlimit(); err != nil {
 		panic(err)
 	}
+
+	cli.HelpFlag = cli.BoolFlag{
+		Name:  "help, h",
+		Usage: "Show help",
+	}
 }
 
 type worker interface {

cmd/containerd/command/main.go

@@ -57,6 +57,14 @@ func init() {
 	cli.VersionPrinter = func(c *cli.Context) {
 		fmt.Println(c.App.Name, version.Package, c.App.Version, version.Revision)
 	}
+	cli.VersionFlag = cli.BoolFlag{
+		Name:  "version, v",
+		Usage: "Print the version",
+	}
+	cli.HelpFlag = cli.BoolFlag{
+		Name:  "help, h",
+		Usage: "Show help",
+	}
 }
 
 // App returns a *cli.App instance.

cmd/ctr/app/main.go

@@ -55,6 +55,14 @@ func init() {
 	cli.VersionPrinter = func(c *cli.Context) {
 		fmt.Println(c.App.Name, version.Package, c.App.Version)
 	}
+	cli.VersionFlag = cli.BoolFlag{
+		Name:  "version, v",
+		Usage: "Print the version",
+	}
+	cli.HelpFlag = cli.BoolFlag{
+		Name:  "help, h",
+		Usage: "Show help",
+	}
 }
 
 // New returns a *cli.App instance.