[django/django] 2ca5fc: Fixed several flake8 errors

[GitHub]

Branch: refs/heads/master
Home: https://github.com/django/django
Commit: 2ca5fc55b0a0b18ce4f060ee999ef355b5ceb0a3
https://github.com/django/django/commit/2ca5fc55b0a0b18ce4f060ee999ef355b5ceb0a3
Author: Alex Gaynor <alex....@gmail.com>
Date: 2014-06-14 (Sat, 14 Jun 2014)

Changed paths:
M django/core/management/commands/squashmigrations.py
M tests/admin_scripts/management/commands/base_command.py
M tests/user_commands/management/commands/optparse_cmd.py

Log Message:
-----------
Fixed several flake8 errors