Updated files with git_helper.

Author: domdfcoding

tox.ini

@@ -112,7 +112,7 @@ basepython = python3.6
 
 ignore_errors=true
 changedir={toxinidir}
-deps = git+https://github.com/domdfcoding/pyupgrade-directories.git
+deps = pyupgrade-directories
 commands = pyup_dirs domdf_python_tools tests --py36-plus --recursive
 
 
@@ -122,7 +122,7 @@ skip_install = True
 ignore_errors=true
 whitelist_externals=tox
 changedir={toxinidir}
-commands = tox -e pyup,isort,yapf,mypy,lint
+commands = tox -e pyup,isort,yapf,mypy,lint {posargs}
 
 
 [flake8]