Cleanups and minor fixups

internal/app/wwctl/configure/tftp/root.go

@@ -0,0 +1,22 @@
+package tftp
+
+import "github.com/spf13/cobra"
+
+var (
+	baseCmd = &cobra.Command{
+		Use:   "tftp",
+		Short: "TFTP configuration",
+		Long:  "TFTP Config",
+		RunE:  CobraRunE,
+	}
+	SetShow bool
+)
+
+func init() {
+	baseCmd.PersistentFlags().BoolVarP(&SetShow, "show", "s", false, "Show configuration (don't update)")
+}
+
+// GetRootCommand returns the root cobra.Command for the application.
+func GetCommand() *cobra.Command {
+	return baseCmd
+}