log.Fatal(err)
	}
}

func regenerate() error {
	vetAnalyzers, err := genflags.VetAnalyzers()
	if err != nil {
		return err
	}

	t := template.Must(template.New("fileTemplate").Parse(fileTemplate))
	tData := map[string][]string{
		"testFlags":    genflags.ShortTestFlags(),
		"vetAnalyzers": vetAnalyzers,
	}
	buf := bytes.NewBuffer(nil)
	if err := t.Execute(buf, tData); err != nil {

package genflags

import (
	"bytes"
	"cmd/go/internal/base"
	"encoding/json"
	"fmt"
	"os/exec"
	"regexp"
	"sort"
)

// VetAnalyzers computes analyzers and their aliases supported by vet.
func VetAnalyzers() ([]string, error) {
	// get supported vet flag information
	tool := base.Tool("vet")
	vetcmd := exec.Command(tool, "-flags")
	out := new(bytes.Buffer)
	vetcmd.Stdout = out

		t.Logf("To regenerate:\n\tgo generate cmd/go/internal/test")
	}
}

func TestPassAnalyzersToVet(t *testing.T) {
	testenv.MustHaveGoBuild(t) // runs 'go tool vet -flags'

	wantNames, err := genflags.VetAnalyzers()
	if err != nil {
		t.Fatal(err)
	}

	missing := map[string]bool{}
	for _, name := range wantNames {
		if !passAnalyzersToVet[name] {
			missing[name] = true
		}
	}
	if len(missing) > 0 {