Reduce the number of bootenv vars

clitools/pkg/node/uboot/init.go

@@ -3,6 +3,7 @@ package uboot
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"k8s.io/klog/v2"
 	"os"
@@ -155,7 +156,7 @@ func ConfigureUBootCommands(ctx context.Context, n *node.NodeContext) error {
 			b.WriteString(trimOutput(a.output, 600))
 			b.WriteString("\n")
 		}
-		return fmt.Errorf(b.String())
+		return errors.New(b.String())
 	}
 
 	klog.Infof("Using: %s", best.config)