Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git dwm.c dwm.c
|index a96f33c..34d1321 100644
|--- dwm.c
|+++ dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 236.
Hunk #2 succeeded at 800.
Hunk #3 succeeded at 1763.
Hunk #4 succeeded at 1789.
done