Hi @jonathan-werder_8656 ,
Thanks for clarifying! I'll be honest, I had no idea where you were getting configuration files in the first place... and I forgot that was ever a thing. Sorry about that.
Anyway, I don't think that this has worked in years, and it's most definitely not something we'd recommend today. We'll try to track it down and remove it in the docs / help text.
For your use case (automated installation) just use pgutil settings to set that value.
Thanks,
Steve