Merge pull request #352 from pre-commit/pre_commit_autoupdate

pre-commit autoupdate

.pre-commit-config.yaml

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4207d94..74f4c12 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -13,23 +13,23 @@
     -   id: requirements-txt-fixer
     -   id: flake8
 -   repo: https://github.com/pre-commit/mirrors-autopep8
-    rev: v1.4
+    rev: v1.4.3
     hooks:
     -   id: autopep8
 -   repo: https://github.com/pre-commit/pre-commit
-    rev: v1.7.0
+    rev: v1.13.0
     hooks:
     -   id: validate_manifest
 -   repo: https://github.com/asottile/reorder_python_imports
-    rev: v1.0.1
+    rev: v1.3.4
     hooks:
     -   id: reorder-python-imports
         language_version: python2.7
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v1.2.0
+    rev: v1.11.0
     hooks:
     -   id: pyupgrade
 -   repo: https://github.com/asottile/add-trailing-comma
-    rev: v0.6.4
+    rev: v0.7.1
     hooks:
     -   id: add-trailing-comma

pre_commit_hooks/check_symlinks.py

diff --git a/pre_commit_hooks/check_symlinks.py b/pre_commit_hooks/check_symlinks.py
index fd80089..010c871 100644
--- a/pre_commit_hooks/check_symlinks.py
+++ b/pre_commit_hooks/check_symlinks.py
@@ -3,7 +3,6 @@
 from __future__ import unicode_literals
 
 import argparse
-import os
 import os.path