git-cl: show dirty files if any

R=chase@chromium.org,szager@chromium.org,maruel@chromium.org
BUG=157398
Review URL: https://codereview.chromium.org/11262004

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@164026 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/tests/git_cl_test.py b/tests/git_cl_test.py
index 47e7939..1486504 100755
--- a/tests/git_cl_test.py
+++ b/tests/git_cl_test.py
@@ -132,7 +132,7 @@
       ((['git', 'symbolic-ref', 'HEAD'],), 'master'),
       find_copies_call,
       ((['git', 'update-index', '--refresh', '-q'],), ''),
-      ((['git', 'diff-index', 'HEAD'],), ''),
+      ((['git', 'diff-index', '--name-status', 'HEAD'],), ''),
       ((['git', 'symbolic-ref', 'HEAD'],), 'master'),
       ((['git', 'config', 'branch.master.merge'],), 'master'),
       ((['git', 'config', 'branch.master.remote'],), 'origin'),
@@ -185,7 +185,7 @@
          '--grep=^SVN changes up to revision [0-9]*$',
          'refs/remotes/origin/master^!'],), ''),
       ((['git', 'update-index', '--refresh', '-q'],), ''),
-      ((['git', 'diff-index', 'HEAD'],), ''),
+      ((['git', 'diff-index', '--name-status', 'HEAD'],), ''),
       ((['git', 'rev-list', '^refs/heads/working',
          'refs/remotes/origin/master'],),
          ''),
@@ -415,7 +415,7 @@
         ((['git', 'config', '--int', '--get',
           'branch.master.git-find-copies'],), ''),
         ((['git', 'update-index', '--refresh', '-q'],), ''),
-        ((['git', 'diff-index', 'HEAD'],), ''),
+        ((['git', 'diff-index', '--name-status', 'HEAD'],), ''),
         ((['git', 'symbolic-ref', 'HEAD'],), 'master'),
         ((['git', 'config', 'branch.master.merge'],), 'master'),
         ((['git', 'config', 'branch.master.remote'],), 'origin'),