Extra line for all log lines

[enocom]

Issue

When running cf logs, I see an extra log for every router log:

2017-12-13T14:51:41.11-0700 [RTR/10] OUT nn-accumulator.cfapps.io - [2017-12-13T21:51:41.104+0000] "GET / HTTP/1.1" 400 0 0 "-" "curl/7.47.0" "10.10.2.186:55276" "10.10.149.105:61003" x_forwarded_for:"50.232.79.2, 10.10.2.186" x_forwarded_proto:"http" vcap_request_id:"8acf9773-567f-4a33-6499-6cf0136c0c19" response_time:0.005741063 app_id:"fe9163db-24ef-4de8-939d-6c8848f05cfd" app_index:"0" x_b3_traceid:"f551776bbbd789e3" x_b3_spanid:"f551776bbbd789e3" x_b3_parentspanid:"-"
2017-12-13T14:51:41.11-0700 [RTR/10] OUT

Context

This is against PWS.

Steps to Reproduce

Just run cf logs on any running app.

Expected result

The unnecessary log line shouldn't be there.

/cc @bradylove

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this:

https://www.pivotaltracker.com/story/show/153652398

The labels on this github issue will be updated when the story is started.

[CAFxX]

We see the same behaviour on our local CFs (we're currently on 262)

[shubhaat]

I was able to reproduce this issue on the latest routing release candidate. The routing team is currently working on replacing the current routing subsystem with a Istio/Envoy based routing subsystem, so we will not be fixing this issue for now. Keeping it open for future reference.

[zachgersh]

closing due to age and won't fix. We can search if someone needs to find the extra log line.