WARN[0000] The "W" variable is not set. Defaulting to a blank string.

[jamess60]

Describe the bug
Every time the container is launched, I get the following error:
WARN[0000] The "W" variable is not set. Defaulting to a blank string.

I have checked the example compose, readme and dockerfile in this git repo and cannot find any mentioned of a W env var. Closest it could be is webroot?

To Reproduce
Steps to reproduce the behavior:

1. Run the container with the following compose exert:

    convertx:
        container_name: convertx
        image: ghcr.io/c4illin/convertx
        restart: always
        ports:
            - "myport:3000"
        environment:
            - JWT_SECRET=mysecret
            - HTTP_ALLOWED=true
        volumes:
            - /myvol:/app/data

Checklist:

• I am accessing ConvertX over HTTPS or have HTTP_ALLOWED=true

[jamess60]

Worth noting this does not prevent the container from running/functioning, but it is noise.
Keen to understand why there is a random undeclared variable somewhere.