This is a reland of 9219d356

The original was reverted due to a typo (core,quotePath instead
of core.quotePath). This version is fixed.

Original change's description:
> Use core.quotePath=false when git is listing files
>
> This prevents git from putting quotes around some file names
> (those that have astral-plane characters) and not around others.
>
> R=maruel
>
> Bug: 792302
>
> Change-Id: I3b6a6b36c4720116de811b40177b59aa25c263db
> Reviewed-on: https://chromium-review.googlesource.com/815454
> Commit-Queue: Aaron Gable <agable@chromium.org>
> Reviewed-by: Marc-Antoine Ruel <maruel@chromium.org>

Bug: 792302
Recipe-Nontrivial-Roll: build
Recipe-Nontrivial-Roll: build_limited_scripts_slave
Change-Id: I28d2260948aaf63bd865888c2f60e4cdee9aea48
Reviewed-on: https://chromium-review.googlesource.com/822990
Commit-Queue: Aaron Gable <agable@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>