prevent false test failure (4.x only, TestBackwardsCompatibility already has this logic)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1622861 13f79535-47bb-0310-9956-ffa450edef68
move this from offsets offender to general offender in test

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1622863 13f79535-47bb-0310-9956-ffa450edef68