I'll sometimes edit a line using my IDE (NuSphere's PhpED), and then return it to what I think is the original.  git diff, however, shows it as being changed with the only difference being a ^M at the end.  What does ^M signify?  Anything I could do to edit the code so it doesn't show up as a change?
- <td></td>
- <td><img […]></td>
+ <td></td>^M
+ <td><img […]></td> ^M
 
     
     
    