Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 1e4936416fa5517fe447e3388e1d44c913e29f56 Mon Sep 17 00:00:00 2001
|From: Markus Dam <markus.dam123@gmail.com>
|Date: Mon, 22 Feb 2021 13:40:13 +0100
|Subject: [PATCH] Add cursor warping
|
|---
| dwm.c | 3 +++
| 1 file changed, 3 insertions(+)
|
|diff --git a/dwm.c b/dwm.c
|index 331a309..c80ef8a 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 828 (offset -54 lines).
Hunk #2 succeeded at 909 (offset 1 line).
Hmm...  Ignoring the trailing garbage.
done