Fix for suggestion applied blindly during review (#86)

Signed-off-by: Rodrigo Tobar <[email protected]>

Author: rtobar

sphinxlint/__main__.py

@@ -60,7 +60,7 @@ def __call__(self, parser, namespace, values, option_string=None):
 
     class StoreNumJobsAction(argparse.Action):
         def __call__(self, parser, namespace, values, option_string=None):
-            setattr(namespace, self.dest, self._job_count(values))
+            setattr(namespace, self.dest, self.job_count(values))
 
         @staticmethod
         def job_count(values):