anchor.diff:  process_grant([HeadElement | RestElements], Grant, RiakPid) ->
       Content = HeadElement#xmlElement.content,
       ElementName = HeadElement#xmlElement.name,
  -    lager:debug("ElementName: ~p", [ElementName]),
  -    lager:debug("Content: ~p", [Content]),
  +    _ = lager:debug("ElementName: ~p", [ElementName]),
  +    _ = lager:debug("Content: ~p", [Content]),
       case ElementName of
           'Grantee' ->
               UpdGrant = process_grantee(Content, Grant, RiakPid);
           'Permission' ->
               UpdGrant = process_permission(Content, Grant);
           _ ->
  -            lager:debug("Encountered unexpected grant element: ~p", [ElementName]),
  +            _ = lager:debug("Encountered unexpected grant element: ~p", [ElementName]),
               UpdGrant = Grant
       end,
       process_grant(RestElements, UpdGrant, RiakPid).
  
positive.code:         {ok, {User, _}} ->
              User?MOSS_USER.canonical_id;
          {error, Reason} ->
              lager:warning("Failed to retrieve canonical id for ~p. Reason: ~p", [Email, Reason]),
              []
      end.
  
  
negative.code: 
  %% @doc Convert an XML document representing an ACL into
  %% an internal representation.
  -spec acl_from_xml(string(), string(), pid()) -> #acl_v2{}.
  acl_from_xml(Xml, KeyId, RiakPid) ->
      {ParsedData, _Rest} = xmerl_scan:string(Xml, []),
      BareAcl = ?ACL{owner={[], [], KeyId}},
  