Fix for suggestion applied blindly during review (#86)

Signed-off-by: Rodrigo Tobar <rtobar@icrar.org>

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):