git cl: Fix incorrect notify parameter when setting TBR.

Follow up on https://chromium-review.googlesource.com/c/527325/

R=agable@chromium.org,rmistry@chromium.org

Bug: chromium:729967
Bug: skia:6744
Change-Id: I7443298797a7c95c8ca01624e3cbf08c95e04855
Reviewed-on: https://chromium-review.googlesource.com/529246Reviewed-by: Ravi Mistry <rmistry@chromium.org>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>

git_cl.py

@@ -3102,7 +3102,8 @@ class _GerritChangelistImpl(_ChangelistCodereviewBase):
       print('Adding self-LGTM (Code-Review +1) because of TBRs.')
       gerrit_util.SetReview(
           self._GetGerritHost(), self.GetIssue(),
-          labels={'Code-Review': 1}, notify=bool(options.send_mail))
+          labels={'Code-Review': 1},
+          notify='ALL' if options.send_mail else 'NONE')
 
     return 0
 

tests/git_cl_test.py

@@ -1581,7 +1581,8 @@ class TestGitCl(TestCase):
     if tbr:
       calls += [
         (('SetReview', 'chromium-review.googlesource.com',
-          123456 if squash else None, {'Code-Review': 1}, notify), ''),
+          123456 if squash else None, {'Code-Review': 1},
+          'ALL' if notify else 'NONE'), ''),
       ]
     calls += cls._git_post_upload_calls()
     return calls