Anon to explicitly named class for ReaderRiotLang.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1565333 13f79535-47bb-0310-9956-ffa450edef68
Tidy up.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1565334 13f79535-47bb-0310-9956-ffa450edef68