[Android] Add a custom pylintrc for build/android/.

build/android/update_verification.py

Index: build/android/update_verification.py
diff --git a/build/android/update_verification.py b/build/android/update_verification.py
index c73a06156fb8ba1bfe2da3ae1fe5d33604aa64d0..4731c6501b779273e3a1e385fabe2631760ac8b3 100755
--- a/build/android/update_verification.py
+++ b/build/android/update_verification.py
@@ -26,11 +26,8 @@ and ask the user to verify that all of the app data was preserved.
 
 import argparse
 import logging
-import os
 import sys
-import time
 
-from pylib import constants
 from devil.android import apk_helper
 from devil.android import device_blacklist
 from devil.android import device_errors
@@ -42,7 +39,7 @@ def CreateAppData(device, old_apk, app_data, package_name):
   raw_input('Set the application state. Once ready, press enter and '
             'select "Backup my data" on the device.')
   device.adb.Backup(app_data, packages=[package_name])
-  logging.critical('Application data saved to %s' % app_data)
+  logging.critical('Application data saved to %s', app_data)
 
 def TestUpdate(device, old_apk, new_apk, app_data, package_name):
   device.Install(old_apk)
@@ -99,7 +96,7 @@ def main():
   if not devices:
     raise device_errors.NoDevicesError()
   device = devices[0]
-  logging.info('Using device %s for testing.' % str(device))
+  logging.info('Using device %s for testing.', str(device))
 
   package_name = (args.package_name if args.package_name
                   else apk_helper.GetPackageName(args.old_apk))