go telemetry
stdout 'on'
go env GOTELEMETRY
stdout 'on'

go env
stdout 'GOTELEMETRY=''?on''?'
stdout 'GOTELEMETRYDIR=''?'$userconfig'[\\/]go[\\/]telemetry''?'
! go env -w GOTELEMETRY=off
stderr '^go: unknown go command variable GOTELEMETRY$'
! go env -w GOTELEMETRYDIR=foo

mode. Without arguments, it displays the current mode. With `local`, `on`, or `off`, it sets
the collection mode. `go` `env` now lists two values: the `GOTELEMETRY` value, which
contains the telemetry collection mode, and the `GOTELEMETRYDIR` value setting which contains
the directory telemetry data and configuration are written to.

<!-- go.dev/issue/58894 ("all: add opt-in transparent telemetry to Go toolchain") -->