src/cmd/go/mkdoc.sh - go - Git at Google

 #!/bin/sh
 # Copyright 2012 The Go Authors.  All rights reserved.
 # Use of this source code is governed by a BSD-style
 # license that can be found in the LICENSE file.

 go install # So the next line will produce updated documentation.
 go help documentation | sed 's; \*/; * /;' >doc.go
 gofmt -w doc.go
	#!/bin/sh
	# Copyright 2012 The Go Authors. All rights reserved.
	# Use of this source code is governed by a BSD-style
	# license that can be found in the LICENSE file.

	go install # So the next line will produce updated documentation.
	go help documentation \| sed 's; \/; /;' >doc.go
	gofmt -w doc.go