9ca4ac0af0
Updating the hadoop version of branch-3.3 to 3.3.9-SNAPSHOT pending agreement on what number its future release should take. Using 3.3.9-SNAPSHOT puts space in for other incremental releases, while avoiding creating JIRA release ordering and autocompletion confusion the way adding a 3.3.10 or higher version would do. Contributed by Steve Loughran