title: Show commits made on branch originally (filter out merged commits)
body: <p>In a git repo with several branches, I've merged a feature branch into master and merged back from master into the feature branch. <strong>How can I now use <code>git log</code> see only those commits made on the feature branch?</strong> I need to filter out those comments made to other branches, even though they've been merged back into this feature branch.</p>
  
  <pre><code>$ git status
  On branch some_feature
  
  $ git checkout master
  $ git merge some_feature
  $ git checkout some_feature
  $ git merge master
  
  $ # Lots of coding and days gone by
  
  $ git log --some_magic_here
  </code></pre>
  
  <p>If it matters, the machine on which I'd like to run <code>git log</code> is not the same machine that was used to code the feature. I need this feature to perform a <strong>code review</strong> on another developer's work. Filter by <code>author=SomeDev</code> doesn't help as I am reviewing one specific feature branch.</p>