Hi Vallo, I have no idea who builds those RPMs - or even how to build a RPM for that matter. You'd probably be better off contacting the RPM's maintainer directly.
s6-memoryhog is special in any case. It's undocumented and unexported. And it's going away in the next release, because it's just a platform testing tool that I included in s6-portable-utils for my own convenience, but has no real business in a utility package. -- Laurent