Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -r add6eb26ebaa dwm.c
|--- a/dwm.c	Sat Dec 20 12:02:14 2008 +0000
|+++ b/dwm.c	Sun Dec 21 18:39:14 2008 +0100
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 240.
Hunk #2 succeeded at 1253 (offset 4 lines).
Hunk #3 succeeded at 1270 (offset 4 lines).
Hunk #4 succeeded at 1318 (offset 4 lines).
Hunk #5 succeeded at 1455 (offset 1 line).
Hunk #6 succeeded at 1491 (offset 4 lines).
Hunk #7 succeeded at 1679 (offset 1 line).
done