When used as input, file transport now guarantees that precisely 'limit' documents are read per batch.
When used as input, file transport now guarantees that precisely 'limit' documents are read per batch.

kjvalencik/elasticsearch-dump,PeoplePerHour/elasticsearch-dump,taskrabbit/elasticsearch-dump,huangchaosuper/elasticsearch-dump,taskrabbit/elasticsearch-dump,SpinGo/elasticsearch-dump,leea/elasticsearch-dump