Problem with --threads:on

[Yardanico]

I've just tried creating a new local Nimble binary package:
    
    
    .
    ├── src
    │   ├── tot
    │   ├── tot.cfg
    │   └── tot.nim
    ├── tot
    └── tot.nimble
    
    
    Run

`tot.cfg` just has `--threads:on`.

And running `nimble run` works here, it just outputs "Hello, World!" (same as 
without tot.cfg).