[autotest] Fix typo

Clearly, whatever this is supposed to do doesnt matter that much,
since it has been wrong since March.

BUG=chromium:672348
TEST=None

Change-Id: Id9d072a18e7a0743797983e03bf3f8d3c2acfc03
Reviewed-on: https://chromium-review.googlesource.com/565808
Commit-Ready: Allen Li <ayatane@chromium.org>
Tested-by: Allen Li <ayatane@chromium.org>
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
diff --git a/site_utils/run_suite.py b/site_utils/run_suite.py
index 208a3d6..3f3602f 100755
--- a/site_utils/run_suite.py
+++ b/site_utils/run_suite.py
@@ -1496,7 +1496,7 @@
 
         """
         if self._solo_test_run:
-            self._test_views, self.retry_count, self._missing_results = (
+            self._test_views, self._retry_counts, self._missing_results = (
                   self._fetch_test_views_of_child_jobs(
                           jobs=self._afe.get_jobs(id=self._suite_job_id)))
         else: