Always add verbose logging for trybot command

tools/perf/core/trybot_command.py

 # Copyright 2015 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 argparse
 import os
 import logging
 import re
 import subprocess
 import urllib2
@@ skipping 282 matching lines @@
 
     Args:
       bot_platform: Name of the platform to be generated.
 
     Returns:
       A dictionary with perf config parameters.
     """
     # To make sure that we don't mutate the original args
     arguments = arguments[:]
 
+    # Always set verbose logging for later debugging
+    if '-v' not in arguments and '--verbose' not in arguments:
+        arguments.append('--verbose')
+
     # Generate the command line for the perf trybots
     target_arch = 'ia32'
     if any(arg == '--chrome-root' or arg.startswith('--chrome-root=') for arg
            in arguments):
       raise ValueError(
           'Trybot does not suport --chrome-root option set directly '
           'through command line since it may contain references to your local '
           'directory')
     if bot_platform in ['win', 'win-x64']:
       arguments.insert(0, 'python tools\\perf\\run_benchmark')
@@ skipping 108 matching lines @@
         return ERROR  # pylint: disable=lost-exception
       logging.info('Checked out original branch: %s', original_branchname)
       returncode, out, err = _RunProcess(
           ['git', 'branch', '-D', 'telemetry-tryjob'])
       if returncode:
         logging.error('Could not delete telemetry-tryjob branch. '
                       'Please delete it manually: %s', err)
         return ERROR  # pylint: disable=lost-exception
       logging.info('Deleted temp branch: telemetry-tryjob')
     return SUCCESS