Add 'config_file' to the deprecated settings list
Fixes
There is usage of this setting but we don't support it since SL4, and
actually just forgot to add it to the list.
@@ -449,7 +449,7 @@ class LinterMeta(type):
'comment_re', 'shebang_match',
'npm_name', 'composer_name',
'executable', 'executable_path',
- 'tab_width'
+ 'tab_width', 'config_file'
):
if key in attrs:
logger.warning(
