autotest: run gcloud in non-interactive mode in sync_cloudsql_access

BUG=chromium:717341
TEST=None

Change-Id: I2126a9729cf5246f7263ef7a0df1b881e4ce33ce
Reviewed-on: https://chromium-review.googlesource.com/492787
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Trybot-Ready: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Allen Li <ayatane@chromium.org>
diff --git a/site_utils/sync_cloudsql_access.py b/site_utils/sync_cloudsql_access.py
index 65023c7..c86de56 100755
--- a/site_utils/sync_cloudsql_access.py
+++ b/site_utils/sync_cloudsql_access.py
@@ -81,9 +81,9 @@
     login = False
     while True:
         try:
-            utils.run('gcloud config set project %s' % project)
-            cmd = 'gcloud sql instances patch %s --authorized-networks %s' % (
-                    instance, ','.join(ips))
+            utils.run('gcloud config set project %s -q' % project)
+            cmd = ('gcloud sql instances patch %s --authorized-networks %s '
+                   '-q' % (instance, ','.join(ips)))
             print 'Running command to update whitelists: "%s"' % cmd
             utils.run(cmd, stdout_tee=sys.stdout, stderr_tee=sys.stderr)
             return