Ensure raw_io creates all parent directories of the backing_dir.

Ensure raw_io creates all parent directories of the backing_dir.

BUG=711071
Review-Url: https://codereview.chromium.org/2835013002
Committed: https://github.com/luci/recipes-py/commit/554e8878ac6395262dc3c90bbb8a100ee844f766

[jbudorick, 2017-04-22 17:59:16]

jbudorick@chromium.org changed reviewers:
+ iannucci@chromium.org

[iannucci, 2017-04-22 18:01:43]

lgtm

[jbudorick, 2017-04-22 18:08:55]

The CQ bit was checked by jbudorick@chromium.org

[commit-bot: I haz the power, 2017-04-22 18:08:58]

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, 2017-04-22 18:11:48]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1492884535810270, "parent_rev":
"6eba2e3ccb23e7a3b622d82f23aad776c09a270c", "commit_rev":
"554e8878ac6395262dc3c90bbb8a100ee844f766"}

[commit-bot: I haz the power, 2017-04-22 18:11:51]

Description was changed from

==========
Ensure raw_io creates all parent directories of the backing_dir.

BUG=711071
==========

to

==========
Ensure raw_io creates all parent directories of the backing_dir.

BUG=711071

Review-Url: https://codereview.chromium.org/2835013002
Committed:
https://github.com/luci/recipes-py/commit/554e8878ac6395262dc3c90bbb8a100ee84...
==========

[commit-bot: I haz the power, 2017-04-22 18:11:52]

Committed patchset #1 (id:1) as
https://github.com/luci/recipes-py/commit/554e8878ac6395262dc3c90bbb8a100ee84...