It _probably_ is not necessary to add Paths_foo to other-modules for executables.

Especially when your executable depends on the library in the same module and the library expose-module-s the Paths_foo already. But even if that is not the case.

But i don't know for sure. I noticed that `alex` gets away without other-module-ing its Paths_alex; but maybe we are just really lucky. Better consult Cabal wizards/sorceresses.

[Edit:] if it matters:

```
$ stack --version
Version 0.1.10.1 x86_64
```