UI Updates with a few minor fixups scattered here and there

internal/app/wwctl/kernel/imprt/root.go

@@ -1,22 +1,30 @@
 package imprt
 
-import "github.com/spf13/cobra"
+import (
+	"github.com/spf13/cobra"
+)
 
 var (
 	baseCmd = &cobra.Command{
-		Use:                "import",
-		Short:              "Kernel Image Import",
-		Long:               "Import kernel image",
-		RunE:				CobraRunE,
-		Args: 				cobra.ExactArgs(1),
-
+		Use:   "import [flags] [kernel version]",
+		Short: "Import Kernel version into Warewulf",
+		Long: "This will import a Kernel version from the control node into Warewulf for nodes\n" +
+			"to be configured to boot on.",
+		RunE: CobraRunE,
+		Args: cobra.MinimumNArgs(1),
 	}
+	BuildAll   bool
+	ByNode     bool
+	SetDefault bool
 )
 
 func init() {
+	baseCmd.PersistentFlags().BoolVarP(&BuildAll, "all", "a", false, "Build all overlays (runtime and system)")
+	baseCmd.PersistentFlags().BoolVarP(&ByNode, "node", "n", false, "Build overlay for a particular node(s)")
+	baseCmd.PersistentFlags().BoolVar(&SetDefault, "setdefault", false, "Set this kernel for the default profile")
 }
 
 // GetRootCommand returns the root cobra.Command for the application.
 func GetCommand() *cobra.Command {
 	return baseCmd
-}
+}