Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/2661
Ran `contrib-check` and verified using the "Provenance Stream Record
ReaderWriter XML AVRO JSON CSV (1.5.0+)" template [from the
wiki](https://cwiki.apache.org/confluence/display/NIFI/Example+Dataflow+Templates).
Had to update the query to look for `DROP` events rather than `FORK`, but
everything looks good. Running a full build, if all tests pass, will merge. ---
