title: git : how to specify a default remote push-to branch?
body: <p>Suppose I have a tracking branch named '<code>abc</code>' which tracks <code>origin/master</code>.</p>
  
  <p>When I'm on '<code>abc</code>' and do a <code>git push</code>, it pushes '<code>abc</code>' to '<code>abc</code>'.<br>
  How do I specify the remote push branch for it with just a '<code>git push</code>'?</p>