Reland "Use core.quotePath=false when git is listing files"

This is a reland of 9219d356885a93d9cbcaf4a2c7fc3f6e29caad49

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>
diff --git a/tests/gclient_scm_test.py b/tests/gclient_scm_test.py
index 60266a6..5c6bf4c 100755
--- a/tests/gclient_scm_test.py
+++ b/tests/gclient_scm_test.py
@@ -631,7 +631,7 @@
                                   options)
     self.mox.StubOutWithMock(gclient_scm.subprocess2, 'check_output', True)
     gclient_scm.subprocess2.check_output(
-        ['git', 'ls-files'], cwd=self.base_path,
+        ['git', '-c', 'core.quotePath=false', 'ls-files'], cwd=self.base_path,
         env=gclient_scm.scm.GIT.ApplyEnvVars({}), stderr=-1,).AndReturn('')
     gclient_scm.subprocess2.check_output(
         ['git', 'rev-parse', '--verify', 'HEAD'],
@@ -668,7 +668,7 @@
                                   options)
     self.mox.StubOutWithMock(gclient_scm.subprocess2, 'check_output', True)
     gclient_scm.subprocess2.check_output(
-        ['git', 'ls-files'], cwd=self.base_path,
+        ['git', '-c', 'core.quotePath=false', 'ls-files'], cwd=self.base_path,
         env=gclient_scm.scm.GIT.ApplyEnvVars({}), stderr=-1,).AndReturn('')
     gclient_scm.subprocess2.check_output(
         ['git', 'rev-parse', '--verify', 'HEAD'],