fix: exit with non zero returncode on error

cmd/root.go

@@ -20,6 +20,7 @@ var rootCmd = &cobra.Command{
 	Use:     "vib",
 	Short:   "Vib is a tool to build container images from recipes using modules",
 	Long:    "Vib is a tool to build container images from YAML recipes using modules to define the steps to build the image.",
+	SilenceUsage: true,
 	Version: Version,
 }
 

main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"os"
 	"github.com/vanilla-os/vib/cmd"
 )
 
@@ -9,5 +10,8 @@ var (
 )
 
 func main() {
-	cmd.Execute()
+	err := cmd.Execute()
+	if (err != nil) {
+		os.Exit(1)
+	}
 }