LUCENE-5468: hunspell2 -> hunspell (with previous options and tests)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene5468@1572718 13f79535-47bb-0310-9956-ffa450edef68
fix oops

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene5468@1572719 13f79535-47bb-0310-9956-ffa450edef68