Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 43d8a0f3df28ba0b25b85eb38b0f990b9947c48a Mon Sep 17 00:00:00 2001
|From: Miles Alan <m@milesalan.com>
|Date: Sat, 1 Feb 2020 09:55:43 -0600
|Subject: [PATCH] Add transferall function which swaps the master & stack and
| adjusts nmaster.
|
|All stack clients after the function is run are moved into the master area
|and master clients are moved into the stack area. The new nmaster will be
|adjusted to be equal to the old number of clients in the stack (e.g. the
|new number of clients in the master).
|---
| config.def.h |  1 +
| dwm.c        | 26 ++++++++++++++++++++++++++
| 2 files changed, 27 insertions(+)
|
|diff --git a/config.def.h b/config.def.h
|index 1c0b587..cce5b64 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 70.
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..a8864e9 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 213.
Hunk #2 succeeded at 1747.
Hmm...  Ignoring the trailing garbage.
done