message: Log the full traceback in Coordinator.request_stop if it's available
diff: @@ -212,9 +212,9 @@ class Coordinator(object):
  if not self._stop_event.is_set():
  if ex and self._exc_info_to_raise is None:
  if isinstance(ex, tuple):
  - logging.info("Error reported to Coordinator: %s, %s",
  - type(ex[1]),
  - compat.as_str_any(ex[1]))
  + logging.info("Error reported to Coordinator: %s",
  + compat.as_str_any(ex[1]),
  + exc_info=ex)
  self._exc_info_to_raise = ex
  else:
  logging.info("Error reported to Coordinator: %s, %s",
  @@ -284,19 +284,17 @@ class Coordinator(object):
  ```python
  try:
  ...body...
  - exception Exception as ex:
  - coord.request_stop(ex)
  + except:
  + coord.request_stop(sys.exc_info())
  ```
  Yields:
  nothing.
  """
  - # pylint: disable=broad-except
  try:
  yield
  - except Exception as ex:
  - self.request_stop(ex)
  - # pylint: enable=broad-except
  + except: # pylint: disable=bare-except
  + self.request_stop(ex=sys.exc_info())
  def wait_for_stop(self, timeout=None):
  """Wait till the Coordinator is told to stop.
  