Review swaps again

[Peter Lemenkov]

Hello All!

I would like to swap the following review requests with anyone:

* erlang-cluster-info https://bugzilla.redhat.com/671884
* erlang-riak_errr https://bugzilla.redhat.com/672203

Both are quite simple and legally clean (as far as I can see) so it
wont take too much time.

-- 
With best regards, Peter Lemenkov.