x11-wm/dwm: add ru gaps option

[kfv_kfv.io]

Summary

The ru_gaps patch causes no conflict with the other two patches, and it could be handy if provided.

[0mp]

Thanks for the patch. I was a bit reluctant at first, but as long as the community is willing to maintain those patches, why not offer an easy way to integrate those within FreeBSD ports.

[kfv_kfv.io]

Thank you so much for accepting the patch. Yes, that's right, I think the same. We can integrate useful patches within our ports as long as they cause no conflict - so the user could easily pick some or all of them and proceed. Cheers.