move code linting to a stricter pep8-esque auto-formatting tool, black

awx/main/migrations/_migration_utils.py

@@ -2,10 +2,10 @@ from awx.main.utils import set_current_apps
 
 
 def set_current_apps_for_migrations(apps, schema_editor):
-    '''
+    """
     This is necessary for migrations which do explicit saves on any model that
     has an ImplicitRoleFIeld (which generally means anything that has
     some RBAC bindings associated with it). This sets the current 'apps' that
     the ImplicitRoleFIeld should be using when creating new roles.
-    '''
+    """
     set_current_apps(apps)