Excess empty file `consul.env`

The empty file `/etc/consul.d/consul.env` causes extra warning message: `agent.auto_config: skipping file /etc/consul.d/consul.env, extension must be .hcl or .json, or config format must be set`

I see this after upgrading: 1.17.3 -> 1.18.2.

At the moment I install tools via HashiCorp PPA, before this I just unzip files as it was here: https://github.com/hashicorp/learn-nomad-cluster-setup

Start by comparing the files installed by the HashiCorp PPA in versions 1.17.3 and 1.18.2, focusing on /etc/consul.d/consul.env. Check the packaging or installation entry point responsible for that file; done means the empty file is no longer installed and the agent no longer emits the extension warning.

Written by the indexing model from the issue text.