Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From ad9b42dd9f9cc984f6d7bf6351b1101b594899b4 Mon Sep 17 00:00:00 2001
|From: Max Schillinger <maxschillinger@web.de>
|Date: Sun, 27 Dec 2020 15:04:08 +0100
|Subject: [PATCH] add patch/function 'goback'
|
|---
| config.def.h |  1 +
| dwm.c        | 31 +++++++++++++++++++++++++++++--
| 2 files changed, 30 insertions(+), 2 deletions(-)
|
|diff --git a/config.def.h b/config.def.h
|index 1c0b587..c217a27 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 72.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/dwm.c b/dwm.c
|index 664c527..3d40bac 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 173.
Hunk #2 succeeded at 267.
Hunk #3 succeeded at 428.
Hunk #4 succeeded at 767.
Hunk #5 succeeded at 792.
Hunk #6 succeeded at 831.
Hunk #7 succeeded at 931.
Hunk #8 succeeded at 1148.
Hunk #9 succeeded at 1211.
Hunk #10 succeeded at 1364.
Hunk #11 succeeded at 1768.
Hunk #12 succeeded at 2066.
Hmm...  Ignoring the trailing garbage.
done