• This is a bug report
• This is a feature request
• I searched existing issues before opening this one

Expected behavior

When the USER is not specified in a docker file, it should trigger a warning because the user will be root.

Actual behavior

The DL3002 warning is checking if the last user is not a root. But if USER is not set the user of the container is root and warning is triggred

Steps to reproduce the behavior

Any docker file not having USER set.

Output of hadolint --version or
docker run --rm hadolint/hadolint hadolint --version or
docker run --rm ghcr.io/hadolint/hadolint hadolint --version:

Haskell Dockerfile Linter 2.12.1