[Android] Suppress findbugs stderr output.

build/android/findbugs_diff.py

Index: build/android/findbugs_diff.py
diff --git a/build/android/findbugs_diff.py b/build/android/findbugs_diff.py
index f55e46261bef9d87376dfd15e441ed54c1829d72..06c689a31ef6fad3a2c1295266cfc6bfc0d23487 100755
--- a/build/android/findbugs_diff.py
+++ b/build/android/findbugs_diff.py
@@ -22,6 +22,7 @@ import sys
 
 from pylib import constants
 from pylib.utils import findbugs
+from pylib.utils import run_tests_helper
 
 _DEFAULT_BASE_DIR = os.path.join(
     constants.DIR_SOURCE_ROOT, 'build', 'android', 'findbugs_filter')
@@ -35,6 +36,8 @@ def main():
   parser = argparse.ArgumentParser()
 
   parser.add_argument(
+      '-v', '--verbose', action='count', help='Enable verbose logging.')
+  parser.add_argument(
       '-a', '--auxclasspath', default=None, dest='auxclasspath',
       help='Set aux classpath for analysis.')
   parser.add_argument(
@@ -69,6 +72,9 @@ def main():
       help='JAR file to analyze')
 
   args = parser.parse_args(build_utils.ExpandFileArgs(sys.argv[1:]))
+
+  run_tests_helper.SetLogLevel(args.verbose)
+
   if args.auxclasspath:
     args.auxclasspath = args.auxclasspath.split(':')
   elif args.auxclasspath_gyp: