title: What is the meaning of these red bars in git file difference
body: <p><a href="https://i.stack.imgur.com/YYPa6.png" rel="noreferrer"><img src="https://i.stack.imgur.com/YYPa6.png" alt="enter image description here"></a></p>
  
  <p>There is a red bar after + sign. What is this ?</p>