Fix code check in upload to google storage.

The check was inverted, and was generating suprious error messages.

Bug: None
Change-Id: I139bb9e7d15e51fbec8c5703b26ed60e1ed1fab8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3884910
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Josip Sokcevic <sokcevic@google.com>
Auto-Submit: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Josip Sokcevic <sokcevic@google.com>

upload_to_google_storage.py

@@ -120,7 +120,7 @@ def _upload_worker(
       if os.stat(filename).st_mode & stat.S_IEXEC:
         code, _, err = gsutil.check_call_with_retries(
             'setmeta', '-h', 'x-goog-meta-executable:1', file_url)
-        if not code:
+        if code != 0:
           ret_codes.put(
               (code,
                'Encountered error on setting metadata on %s\n%s' %