Update pre-commit run command options.

Author: fabiocaccamo

tox.ini

@@ -26,7 +26,7 @@ deps =
     -r requirements-test.txt
 
 commands =
-    pre-commit run -a
+    pre-commit run --all-files
     coverage run --append --source=maintenance_mode runtests.py
     coverage report --show-missing --ignore-errors