Where cvs-ghc@haskell.org emails go?
There are modules in base
and ghc-prim
also new ones (e.g. https://hackage.haskell.org/package/ghc-prim-0.9.0/docs/GHC-Magic-Dict.html) which list cvs-ghc@haskell.org
as maintainer.
Apparently that was a mailing list, as there are also few references to posts in rts and testsuite, e.g.
See thread http://www.haskell.org/pipermail/cvs-ghc/2007-September/038458.html
But these links are gone.
I suggest removing haddock maintainer annotation from the modules, and inlining the relevant information from the mailing list threads if they can be found somewhere still (or if archives can be resurrected, that would be even better, I guess).