Re-spell a variable.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1468515 13f79535-47bb-0310-9956-ffa450edef68
Split constants declaration for clarity.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1468518 13f79535-47bb-0310-9956-ffa450edef68