title: how to remove changes since last git commit
body: <p>This is probably a simple (but irritating) question.  How do you remove all changes remove changes since last commit?  I botched a patch, and I want to go back to how things were at my last commit.</p>
  <p>I have tried:</p>
  <pre><code>git reset --hard master
  </code></pre>
  <p>and</p>
  <pre><code>git checkout master
  </code></pre>
  <p>but neither rid my folders of the files hat I have added / changed (they are still listed as untracked files.)</p>