Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/dmenu.c b/dmenu.c
|index 6b8f51b..6544112 100644
|--- a/dmenu.c
|+++ b/dmenu.c
--------------------------
Patching file dmenu.c using Plan A...
Hunk #1 succeeded at 31.
Hunk #2 succeeded at 46.
Hunk #3 succeeded at 62.
Hunk #4 succeeded at 113.
Hunk #5 succeeded at 132.
Hunk #6 succeeded at 381.
Hunk #7 succeeded at 492.
Hunk #8 succeeded at 566.
done