[CHANGED] File sync test to run faster on Travis
[CHANGED] File sync test to run faster on Travis

The total number of messages was too high when running on Travis.
Cost of fsync there appear to be significant.

Related to PR #128

petemiron/nats-streaming-server,nats-io/nats-streaming-server,nats-io/nats-streaming-server,petemiron/nats-streaming-server,petemiron/nats-streaming-server