Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 1004b9406e4b89448cf9d3b18955dbd0d55a571d Mon Sep 17 00:00:00 2001
|From: bakkeby <bakkeby@gmail.com>
|Date: Wed, 1 Jul 2020 08:05:35 +0200
|Subject: [PATCH] holdbar: variant of the patch where holdbar is only active
| when the bar is toggled off
|
|Additionally this allows the use of the primary MOD key to be used as the holdbar key while
|still allowing the bar to be toggled on and off using MOD+b. This gives a more intuitive and
|flexible feel when using this functionality.
|
|Use xev to find the keysym for the key that you want to use and add/update the HOLDKEY
|definition in config.h.
|
|E.g. using Alt_L as the HOLDKEY
|---
| config.def.h |  2 ++
| dwm.c        | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++-
| 2 files changed, 52 insertions(+), 1 deletion(-)
|
|diff --git a/config.def.h b/config.def.h
|index 1c0b587..8611189 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 50.
Hunk #2 succeeded at 95.
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..def5f66 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 176.
Hunk #2 succeeded at 211.
Hunk #3 succeeded at 219.
Hunk #4 succeeded at 248.
Hunk #5 succeeded at 256.
Hunk #6 succeeded at 280.
Hunk #7 succeeded at 1748.
Hmm...  Ignoring the trailing garbage.
done