title: makefile: pass variable number of arguments
body: <p>I have a Makefile like so:</p>
  
  <pre><code>test:
       pytest $(args)
  
  .PHONY: test
  
  </code></pre>
  
  <p>My goal is to be able to call tests, like <code>make test -v -k "test_foo"</code>, or <code>make test -m</code></p>
  
  <p>How do i accomplish this?</p>