Update tests from Apache Commons IO 2.5 to 2.6.
Update tests from Apache Commons IO 2.5 to 2.6.

git-svn-id: fd52ae19693b7be904def34076a5ebbd6e132215@1812759 13f79535-47bb-0310-9956-ffa450edef68

apache/commons-jcs,apache/commons-jcs,apache/commons-jcs