wwctl completions for no args

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

internal/app/wwctl/genconf/warewulfconf/root.go

@@ -2,16 +2,18 @@ package warewulfconf
 
 import (
 	"github.com/spf13/cobra"
+	"github.com/warewulf/warewulf/internal/app/wwctl/completions"
 	"github.com/warewulf/warewulf/internal/app/wwctl/genconf/warewulfconf/print"
 )
 
 var (
 	baseCmd = &cobra.Command{
-		Use:     "warewulfconf",
-		Short:   "access warewulf.conf",
-		Long:    "Commands for accessing the actual used warewulf.conf",
-		Args:    cobra.ExactArgs(0),
-		Aliases: []string{"cnf"},
+		Use:               "warewulfconf",
+		Short:             "access warewulf.conf",
+		Long:              "Commands for accessing the actual used warewulf.conf",
+		Args:              cobra.NoArgs,
+		Aliases:           []string{"cnf"},
+		ValidArgsFunction: completions.None,
 	}
 	ListFull  bool
 	WWctlRoot *cobra.Command