Proposed changes to your patch submission

I made the indentation consistent with the rest of the file, and simplified the test so that it would work on my test computer which has git installed on the D: drive, and so that it would work on my test computer which has git installed in C:\E\Program Files\Git.

I still don't quite understand how the new msysgit version test is any different than the test which was already there for msysgit 1.9.2.  I'll study that further.