Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -r 2533f186089d surf.c
|--- a/surf.c	Thu Mar 31 12:52:35 2011 +0200
|+++ b/surf.c	Thu Oct 20 17:03:08 2011 -0700
--------------------------
Patching file surf.c using Plan A...
Hunk #1 succeeded at 60.
Hunk #2 succeeded at 433 (offset -1 lines).
Hunk #3 succeeded at 830 (offset -1 lines).
done