Log hit and miss file and byte counts from exparchive.

Log hit and miss file and byte counts from exparchive.

BUG=598990
Committed: https://github.com/luci/luci-go/commit/226173eef159f64d9442d69cc40d8c9ae63b861e

[mcgreevy, 2016-12-07 04:52:51]

mcgreevy@chromium.org changed reviewers:
+ djd@chromium.org

[djd-OOO-Apr2017, 2016-12-07 05:00:14]

The CQ bit was checked by djd@chromium.org

[djd-OOO-Apr2017, 2016-12-07 05:00:15]

lgtm

[commit-bot: I haz the power, 2016-12-07 05:00:21]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-07 05:12:21]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481086814948460, "parent_rev":
"e6834d3db8af5c2c540dc4a76ecddc49e1a14795", "commit_rev":
"226173eef159f64d9442d69cc40d8c9ae63b861e"}

[commit-bot: I haz the power, 2016-12-07 05:12:23]

Description was changed from

==========
Log hit and miss file and byte counts from exparchive.

BUG=598990
==========

to

==========
Log hit and miss file and byte counts from exparchive.

BUG=598990

Committed:
https://github.com/luci/luci-go/commit/226173eef159f64d9442d69cc40d8c9ae63b861e
==========

[commit-bot: I haz the power, 2016-12-07 05:12:23]

Committed patchset #1 (id:1) as
https://github.com/luci/luci-go/commit/226173eef159f64d9442d69cc40d8c9ae63b861e