[Android] Suppress findbugs stderr output.

build/android/pylib/utils/findbugs.py

 # Copyright (c) 2012 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 logging
 import os
 import re
 import shlex
 import sys
@@ skipping 124 matching lines @@
     cmd.extend(['-onlyAnalyze', classes_to_analyze])
   if exclude:
     cmd.extend(['-exclude', os.path.abspath(exclude)])
   if output_file:
     cmd.extend(['-output', output_file])
   if findbug_args:
     cmd.extend(findbug_args)
   cmd.extend(os.path.abspath(j) for j in jars or [])
 
   if output_file:
-    cmd_helper.RunCmd(cmd)
+    _, _, stderr = cmd_helper.GetCmdStatusOutputAndError(cmd)
+
     results_doc = xml.dom.minidom.parse(output_file)
   else:
-    raw_out = cmd_helper.GetCmdOutput(cmd)
+    _, raw_out, stderr = cmd_helper.GetCmdStatusOutputAndError(cmd)
     results_doc = xml.dom.minidom.parseString(raw_out)
 
+  for line in stderr.splitlines():
+    logging.debug('  %s', line)
+
   current_warnings_set = _ParseXmlResults(results_doc)
 
   return (' '.join(cmd), current_warnings_set)