Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From de2bfe560a8085630ffe976fd5972ee1e8d03916 Mon Sep 17 00:00:00 2001
|From: pskry <peter@skrypalle.dk>
|Date: Mon, 16 Nov 2020 17:47:05 +0100
|Subject: [PATCH] Enable swapping master- and stack-area
|
|Enables swapping the master- and stack area such that the master-client
|appears on the right and the stack-clients appear on the left.
|
|A variable and a toggle-function are introduced to achieve this
|behaviour which are set in the config.h:
|
|* The rmaster-variable can be set to 1 to make the right area the
|default master-area
|* The togglemaster-function can be used to swap the master- and
|stack-areas dynamically.
|---
| config.def.h |  2 ++
| dwm.c        | 23 ++++++++++++++++++++---
| 2 files changed, 22 insertions(+), 3 deletions(-)
|
|diff --git a/config.def.h b/config.def.h
|index 1c0b587..1d00282 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 3.
Hunk #2 succeeded at 79.
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 4465af1..a2d118b 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 122.
Hunk #2 succeeded at 212.
Hunk #3 succeeded at 638.
Hunk #4 succeeded at 1684.
Hunk #5 succeeded at 1726.
Hmm...  Ignoring the trailing garbage.
done