Files
docker-cli/cmd/docker
Paweł Gronowski ff7f76af7a Handle empty DOCKER_BUILDKIT like unset
This fixes the cli erroring out if the variable is set to an empty
value.

```
$ export DOCKER_BUILDKIT=
$ docker version
DOCKER_BUILDKIT environment variable expects boolean value: strconv.ParseBool: parsing "": invalid syntax
```

Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
2023-04-19 14:17:01 +02:00
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