Eliminate all interactive terminal prompts from git.

tests/gclient_scm_test.py

Index: tests/gclient_scm_test.py
diff --git a/tests/gclient_scm_test.py b/tests/gclient_scm_test.py
index c49b5247e449bc82be3499de94c9564c442ae5ff..fcaf4c5a7cf6a6b603dad1dfb143de84584e37d1 100755
--- a/tests/gclient_scm_test.py
+++ b/tests/gclient_scm_test.py
@@ -1306,13 +1306,13 @@ class ManagedGitWrapperTestCaseMox(BaseTestCase):
     gclient_scm.GitWrapper._Clone('refs/remotes/origin/master', self.url,
                                   options)
     self.mox.StubOutWithMock(gclient_scm.subprocess2, 'check_output', True)
-    gclient_scm.subprocess2.check_output(['git', 'ls-files'],
-                                         cwd=self.base_path,
-                                         stderr=-1,
-                                         ).AndReturn('')
+    gclient_scm.subprocess2.check_output(
+        ['git', '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'],
         cwd=self.base_path,
+        env=gclient_scm.scm.GIT.ApplyEnvVars({}),
         stderr=-1,
         ).AndReturn('')
 
@@ -1338,13 +1338,13 @@ class ManagedGitWrapperTestCaseMox(BaseTestCase):
                                   options)
     # pylint: disable=E1120
     self.mox.StubOutWithMock(gclient_scm.subprocess2, 'check_output', True)
-    gclient_scm.subprocess2.check_output(['git', 'ls-files'],
-                                         cwd=self.base_path,
-                                         stderr=-1,
-                                         ).AndReturn('')
+    gclient_scm.subprocess2.check_output(
+        ['git', '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'],
         cwd=self.base_path,
+        env=gclient_scm.scm.GIT.ApplyEnvVars({}),
         stderr=-1,
         ).AndReturn('')