nmap: FTBFS on kfreebsd-any

[Hilko Bengen]

* Lukas Schwaighofer:

> I've added an upstream pull request [2] to hopefully (*) fix the issue.
> I've also pushed the proposed fix to our git repository.  Since there
> are no kfreebsd-any release architectures I don't know if this deserves
> an immediate upload.

It won't hurt. I just successfully built on falla (kfreebsd-amd64). If
you prepare a release, I'll upload.

Cheers,
-Hilko