title: Run git pull over all subdirectories
body: <p>How can I update  multiple git repositories from their shared parent's directory without <code>cd</code>'ing into each repo's root directory? I have the following which are all separate git repositories (<strong>not</strong> submodules):</p>
  
  <pre><code>/plugins/cms
  /plugins/admin
  /plugins/chart
  </code></pre>
  
  <p>I want to update them all at once or at least simplify my current workflow:</p>
  
  <pre><code>cd ~/plugins/admin
  git pull origin master
  cd ../chart
  git pull
  </code></pre>
  
  <p>etc.</p>