base.Fatalf("go: reading go env config: %v", err)
	}
	lines := strings.SplitAfter(string(data), "\n")
	if lines[len(lines)-1] == "" {
		lines = lines[:len(lines)-1]
	} else {
		lines[len(lines)-1] += "\n"
	}
	return lines
}

func updateEnvFile(add map[string]string, del map[string]bool) {
	lines := readEnvFileLines(len(add) == 0)

	}
}

// wrap wraps words into lines of at most max runes,
// minimizing the sum of the squares of the leftover lengths
// at the end of each line (except the last, of course),
// with a preference for ending lines at punctuation (.,:;).
//
// The returned slice gives the indexes of the first words
// on each line in the wrapped text with a final entry of len(words).
// Thus the lines are words[seq[0]:seq[1]], words[seq[1]:seq[2]],

		want[cname] = addr
		group = make(map[string]string)
	}
	lines := bytes.Split(out, []byte{'\r', '\n'})
	for _, line := range lines {
		if len(line) == 0 {
			processGroup()
			continue
		}
		i := bytes.IndexByte(line, ':')
		if i == -1 {
			t.Fatalf("line %q has no : in it", line)
		}
		group[string(line[:i])] = string(bytes.TrimSpace(line[i+1:]))
	}
	processGroup()

trace parsers.

# Text format specification

The trace text format produced and consumed by this package is a line-oriented
format.

The first line in each text trace is the header line.

	Trace Go1.XX

Following that is a series of event lines. Each event begins with an
event name, followed by zero or more named unsigned integer arguments.

		var line *Line
		if r.Syntax == nil {
			line = &Line{Token: []string{AutoQuote(r.Mod.Path), r.Mod.Version}}
			r.Syntax = line
			if r.Indirect {
				r.setIndirect(true)
			}
		} else {
			line = new(Line)
			*line = *r.Syntax
			if !line.InBlock && len(line.Token) > 0 && line.Token[0] == "require" {
				line.Token = line.Token[1:]
			}

		return false, false, err
	}
	status, err := io.ReadAll(os.NewFile(uintptr(fd), statusFile))
	if err != nil {
		return false, false, err
	}
	lines := bytes.Split(status, []byte{'\n'})
	// Find the State line.
	stateLineIdx := -1
	for i, line := range lines {
		if bytes.HasPrefix(line, []byte("State:")) {
			stateLineIdx = i
			break
		}
	}
	if stateLineIdx < 0 {
		// Malformed status file?

  comments: disable
  comments-indentation: disable
  document-end: disable
  document-start: disable
  empty-lines: disable
  empty-values: disable
  hyphens: enable
  indentation: disable
  key-duplicates: enable
  key-ordering: disable
  line-length: disable
  new-line-at-end-of-file: disable
  new-lines: enable
  octal-values: disable
  quoted-strings: disable
  trailing-spaces: disable

		key.mappingID = l.Mapping.ID
	}
	lines := make([]string, len(l.Line)*2)
	for i, line := range l.Line {
		if line.Function != nil {
			lines[i*2] = strconv.FormatUint(line.Function.ID, 16)
		}
		lines[i*2+1] = strconv.FormatInt(line.Line, 16)
	}
	key.lines = strings.Join(lines, "|")
	return key
}

type locationKey struct {
	addr, mappingID uint64
	lines           string
	isFolded        bool
}

// - The sections see also, that assumes file will be used as a main page
func cleanupForInclude(md string) string {
	lines := strings.Split(md, "\n")

	cleanMd := ""
	for i, line := range lines {
		if i == 0 {
			continue
		}
		if line == "### SEE ALSO" {
			break
		}

		cleanMd += line
		if i < len(lines)-1 {
			cleanMd += "\n"
		}
	}

	return cleanMd

			return fmt.Errorf("different size for %q: %d != %d", f.name, f.size, g.size)
		}
		for j, l := range f.lines {
			m := g.lines[j]
			if l != m {
				return fmt.Errorf("different offsets for %q", f.name)
			}
		}
		for j, l := range f.infos {
			m := g.infos[j]
			if l.Offset != m.Offset || l.Filename != m.Filename || l.Line != m.Line {
				return fmt.Errorf("different infos for %q", f.name)
			}
		}
	}