often the name of a go subcommand (list, build, test, ...) or concept (vendor, pattern).

Each script is a text archive (go doc internal/txtar).
The script begins with an actual command script to run
followed by the content of zero or more supporting files to
create in the script's temporary file system before it starts executing.

As an example, run_hello.txt says:

	# hello world
	go run hello.go
	stderr 'hello world'
	! stdout .

API changes and other small changes to the standard library go here....

requiring specific network servers and also to make them 
significantly faster.

A small go get'able test module can be added here by running

	cd cmd/go/testdata
	go run addmod.go path@vers

where path and vers are the module path and version to add here.

For interactive experimentation using this set of modules, run:

	cd cmd/go
	go test -proxy=localhost:1234 &

API changes and other small changes to the standard library go here....

with programs from that release.

2. Pprof is used inside Google for C++, Java, and Go programs.
Because it was developed for that broader context, it is overgeneralized
when used here for the specific use case of profiling standard Go programs.
However, we've left the abstractions intact in order to share updates
between our vendored copy and Google's internal one.