title: What does Visual Studio mean by normalize inconsistent line endings?
body: <p>Visual Studio occasionally tells me:</p>
  
  <blockquote>
    <p>The line endings in the following files are not consistent. Do you want to normalize the line endings?</p>
  </blockquote>
  
  <p>It then gives me a drop down with different standards or something, such as Windows, Mac, Unix, and a couple of Unicode ones.</p>
  
  <p>What does this mean and what is going to happen if I click <code>Yes</code>?</p>