Fix compiler warnings.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1620893 13f79535-47bb-0310-9956-ffa450edef68
Oops, back out one of the previous changes.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1620896 13f79535-47bb-0310-9956-ffa450edef68
Fix compiler warning.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1620897 13f79535-47bb-0310-9956-ffa450edef68