autotest: skylab_staging: fix return value from _create_suite_and_wait

BUG=chromium:966518
TEST=None

Change-Id: I987d469eb8e5613e27fd7ff9966a992a474f954c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/1628152
Reviewed-by: C Shapiro <shapiroc@chromium.org>
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
diff --git a/venv/skylab_staging/test_push.py b/venv/skylab_staging/test_push.py
index cd74ca1..d62219c 100644
--- a/venv/skylab_staging/test_push.py
+++ b/venv/skylab_staging/test_push.py
@@ -181,7 +181,7 @@
                            service_account_json, suite, require_success=True):
   """Create and wait for a skylab suite (in staging).
 
-  Returns: string task id of the completed suite.
+  Returns: string task request id of the completed suite.
 
   Raises: errors.TestPushError if the suite failed.
   """
@@ -219,6 +219,8 @@
       not json.loads(cmd_result.output)['task-result']['success']):
     raise errors.TestPushError('Suite %s did not succeed.' % suite)
 
+  return task_id
+
 
 def _verify_test_results(task_id, expected_results):
   """Verify if test results are expected."""