Change the logging of NotBootstrappedError.

build/android/pylib/android/logdog_logcat_monitor.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 import logging
 import sys
 
 from devil.android import logcat_monitor
 from devil.utils import reraiser_thread
@@ skipping 11 matching lines @@
     super(LogdogLogcatMonitor, self).__init__(adb, clear, filter_specs)
     self._logcat_url = ''
     self._logdog_stream = None
     self._stream_client = None
     self._stream_name = stream_name
     try:
       self._stream_client = bootstrap.ButlerBootstrap.probe().stream_client()
       self._logdog_stream = self._stream_client.open_text(self._stream_name)
     except bootstrap.NotBootstrappedError as e:
       logging.exception(
-          'Error not bootstrapped. Failed to start logdog: %s', e)
+          'Unable to enable logdog_logcat, %s.', str(e).split(': ')[1])

[jbudorick, 2017/01/10 01:02:42]

I'm not sure that we ought to be messing with the error text from the
NotBootstrappedError.

     except (KeyError, ValueError) as e:
       logging.exception('Error when creating stream_client/stream: %s.', e)
     except Exception as e: # pylint: disable=broad-except
       logging.exception('Unknown Error: %s.', e)
 
   def GetLogcatURL(self):
     """Return logcat url.
 
     The default logcat url is '', if failed to create stream_client.
     """
@@ skipping 43 matching lines @@
       self._record_thread = reraiser_thread.ReraiserThread(record_to_stream)
       self._record_thread.start()
 
   def Close(self):
     """Override parent's close method."""
     pass
 
   def __del__(self):
     """Override parent's delete method."""
     pass