title: git show logs exclude some user or committer
body: <p>I don't know how to do this</p>
  
  <p>I try these already:</p>
  
  <p><code>
  <code>git log -p --author="user" --not Sites/Web/Templates</code>
  </code></p>
  
  <p><code>
  <code>git log -p --author="!user" Sites/Web/Templates</code>
  </code></p>
  
  <p>still show log of that user. Help, please.</p>