Proposal: generalise Monoid's mconcat

We could generalise: mconcat:: [a] -> a mconcat = foldr mappend memtpy to: mconcat:: Foldable t => t a -> a mconcat = foldr mappend memtpy -- even -- mconcat = fold Fermin PS: I cannot find a proposal for this in the archives, apologies if it's been raised before and I missed it.