another python3 fix

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_1@1434440 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4442: No longer need to copy changes or KEYS, since they are both now handled by 'ant prepare-release'

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_1@1434487 13f79535-47bb-0310-9956-ffa450edef68
Fix typos

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_1@1434545 13f79535-47bb-0310-9956-ffa450edef68