Use exclude keyword to skip markdown files #1370
First of all,
Second, why would you want to switch from the more powerful Unix shell patterns to file extensions only? That would be a regression to a less powerful solution.
That said, having Markdown extensions defined in one place makes sense. And using the
Strange that I missed that call with
For the change away from patterns there is no motivation other than it appeared unused and was convenient for passing a list of extensions.
Some design choices: