Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From cab59aac8aef1224639e5b46ab19444101f0e9f1 Mon Sep 17 00:00:00 2001
|From: aleks <aleks.stier@icloud.com>
|Date: Sun, 30 Aug 2020 17:02:42 +0200
|Subject: [PATCH] Apply singularborders-6.2
|
|---
| dwm.c | 20 +++++++++++++++-----
| 1 file changed, 15 insertions(+), 5 deletions(-)
|
|diff --git a/dwm.c b/dwm.c
|index 4465af1..c3cfe41 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 783.
Hunk #2 succeeded at 798.
Hunk #3 succeeded at 1119.
Hunk #4 succeeded at 1694.
Hmm...  Ignoring the trailing garbage.
done