Pass on the arguments and environment (if provided).
Fix a comment.
Using the entry point stops us from running anything interactively.
Submodule fost-base 279f649..1a433f9:

> Merge branch 'develop' of github.com:KayEss/fost-base into develop
  > The `fostlib::accessors` now use perfect forwarding if
`FOST_HAS_MOVE` is defined.