Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 7600ab7f23e732062ce5ff34a42ca0f1ce019702 Mon Sep 17 00:00:00 2001
|From: Sam <tritoke@protonmail.com>
|Date: Fri, 23 Jul 2021 18:38:03 +0100
|Subject: [PATCH] Created rotatetags function, and keybinds.
|
|- Added rotatetags function which rotates the tagset left / right the
|given number of tags, including wrapping round the ends if necessary.
|
|- Added keybinds for MOD + left and right arrows, moving the tagset left /
|right respectively.
|---
| config.def.h |  2 ++
| dwm.c        | 28 ++++++++++++++++++++++++++++
| 2 files changed, 30 insertions(+)
|
|diff --git a/config.def.h b/config.def.h
|index 1c0b587..2992431 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 84.
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..768166e 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 192.
Hunk #2 succeeded at 1370.
Hmm...  Ignoring the trailing garbage.
done