title: Text file with ^M on each line
body: <p>I just got a source code file from a friend. The file was created in UNIX. When I opened it in Windows using NotePad++, each line had one extra blank line.</p>
  
  <p>Puzzled, I downloaded Vim and used it to open the file. I then saw a bunch of ^M at the end of each line.</p>
  
  <p>What is this ^M? How do you prevent it from being inserted?</p>