title: what git function allows me to approve/deny each change a commit will make?
body: <p>what <code>git</code> function allows me to approve/deny each change a commit will make?</p>
  
  <p>I remember seeing this when I first started <em>gitting</em>, but can't seem to find it now...</p>
  
  <p>I know I've done it once, where it gave a list of single letters, and each letter was a different aprove/deny/skip function. Does anyone know what I am talking about?</p>