Re-format with black

Fixes new black formatting errors.

reviewrot/__init__.py

@@ -91,7 +91,6 @@ def get_arguments(cli_arguments, config):
             command_line_args.get(argument) is None
             or command_line_args.get(argument) is False
         ):
-
             config_value = config_arguments.get(argument)
             if is_valid_choice(argument, config_value):
                 parsed_arguments[argument] = config_value

reviewrot/gerritstack.py

@@ -265,7 +265,6 @@ def format_response(self, decoded_responses, age, show_last_comment):
         """
         res_ = []
         for decoded_response in decoded_responses:
-
             time_format = "%Y-%m-%d %H:%M:%S.%f"
             created_date = datetime.strptime(
                 decoded_response["created"][:-3], time_format

reviewrot/gitlabstack.py

@@ -105,7 +105,6 @@ def request_reviews(
 
             # get merge requests for all projects for specified group
             for group_project in group_projects:
-
                 project = gl.projects.get(group_project.id)
                 res = self.get_reviews(
                     uname=user_name,
@@ -156,7 +155,6 @@ def get_reviews(self, uname, project, age=None, show_last_comment=None, image=No
             log.debug("No open merge requests found for %s/%s ", uname, project.name)
         res_ = []
         for mr in merge_requests:
-
             last_comment = self.get_last_comment(mr)
 
             try:

tox.ini

@@ -28,6 +28,7 @@ commands =
         reviewrot/ test/
 
 [testenv:black]
+skip_install = true
 deps =
     black
 commands =
@@ -36,6 +37,12 @@ commands =
         --diff \
         reviewrot/ test/
 
+[testenv:black-format]
+skip_install = true
+deps =
+    black
+commands =
+    black reviewrot/ test/
 
 [testenv:clean]
 deps = coverage