package main

import (
	"bufio"
	"bytes"
	"internal/testenv"
	"os"
	"path/filepath"
	"runtime"
	"strings"
	"sync"
	"testing"
)

// TestMain executes the test binary as the addr2line command if
// GO_ADDR2LINETEST_IS_ADDR2LINE is set, and runs the tests otherwise.
func TestMain(m *testing.M) {
	if os.Getenv("GO_ADDR2LINETEST_IS_ADDR2LINE") != "" {
		main()
		os.Exit(0)
	}

Vendoring in std and cmd
========================

The Go command maintains copies of external packages needed by the
standard library in the src/vendor and src/cmd/vendor directories.

There are two modules, std and cmd, defined in src/go.mod and
src/cmd/go.mod. When a package outside std or cmd is imported
by a package inside std or cmd, the import path is interpreted
as if it had a "vendor/" prefix. For example, within "crypto/tls",

## Tools {#tools}

### Go command {#go-command}

Setting the `GOROOT_FINAL` environment variable no longer has an effect
([#62047](https://go.dev/issue/62047)).
Distributions that install the `go` command to a location other than
`$GOROOT/bin/go` should install a symlink instead of relocating
or copying the `go` binary.

### Vet {#vet}

The `go vet` subcommand now includes the