[TODO] redact

[nfx]

See more context:

sandbox/acceptance/ecosystem/golang.go

Lines 136 to 141 in a89763e

	go redact.Copy(errBuf, teeErr)
	// TODO: redact
	teeOut := io.TeeReader(outReader, goTestStdout)
	// We have to wait for the output to be fully processed before returning.
	var wg sync.WaitGroup
	wg.Add(1)