Comment 8 for bug 1740022

> Ad point 3, IMHO systems variables should ALWAYS override.

What? That's not how environment variables have ever worked. The parent process sets the environment first, then the child overrides it with any variables it explicitly sets. "System" variables come from the session manager and then KiCad overrides with any the user has set to non-default. This is how every program works by default on everything but Windows (which doesn't _have_ per-application env variables IIRC) and I see no reason for KiCad to do the opposite.