Minor review notes

cms/djangoapps/contentstore/management/commands/import.py

 ###
-### Script for importing courseware form XML format
+### Script for importing courseware from XML format
 ###
 
 from django.core.management.base import BaseCommand, CommandError

cms/djangoapps/github_sync/tests/__init__.py

 from django.test import TestCase
 from path import path
 import shutil
-from github_sync import import_from_github, export_to_github, load_repo_settings, sync_all_with_github, sync_with_github
+from github_sync import (
+    import_from_github, export_to_github, load_repo_settings,
+    sync_all_with_github, sync_with_github
+)
 from git import Repo
 from django.conf import settings
 from xmodule.modulestore.django import modulestore

cms/envs/logsettings.py

@@ -33,7 +33,6 @@ def get_logger_config(log_dir,
 
     return {
         'version': 1,
-        'disable_existing_loggers': True,
         'formatters' : {
             'standard' : {
                 'format' : '%(asctime)s %(levelname)s %(process)d [%(name)s] %(filename)s:%(lineno)d - %(message)s',