Fix returning the wrong list of keys - have to return the list of keys of files in the buckets, not the keys of lines in files
Fix returning the wrong list of keys - have to return the list of keys of files in the buckets, not the keys of lines in files

klahnakoski/TestLog-ETL,klahnakoski/TestLog-ETL,klahnakoski/ActiveData-ETL,klahnakoski/ActiveData-ETL