Merge pull request #561 from stevvooe/correct-versioning

version: finish version setup

cmd/containerd/main.go

@@ -40,6 +40,12 @@ var (
 	global = log.WithModule(gocontext.Background(), "containerd")
 )
 
+func init() {
+	cli.VersionPrinter = func(c *cli.Context) {
+		fmt.Println(c.App.Name, containerd.Package, c.App.Version)
+	}
+}
+
 func main() {
 	app := cli.NewApp()
 	app.Name = "containerd"

cmd/ctr/main.go

@@ -9,6 +9,12 @@ import (
 	"github.com/urfave/cli"
 )
 
+func init() {
+	cli.VersionPrinter = func(c *cli.Context) {
+		fmt.Println(c.App.Name, containerd.Package, c.App.Version)
+	}
+}
+
 func main() {
 	app := cli.NewApp()
 	app.Name = "ctr"

cmd/dist/main.go

@@ -15,6 +15,9 @@ var (
 )
 
 func main() {
+	cli.VersionPrinter = func(c *cli.Context) {
+		fmt.Println(os.Args[0], containerd.Package, containerd.Version)
+	}
 	app := cli.NewApp()
 	app.Name = "dist"
 	app.Version = containerd.Version