Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -r dbb565b8d61c surf.c
|--- a/surf.c	Fri Jun 25 09:42:58 2010 +0200
|+++ b/surf.c	Fri Aug 13 16:28:31 2010 -0400
--------------------------
Patching file surf.c using Plan A...
Hunk #1 succeeded at 55.
Hunk #2 succeeded at 95.
Hunk #3 succeeded at 394.
Hunk #4 succeeded at 567.
done