Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 4928b5e9f4e5666ed35e3aa3f61df25c503e921e Mon Sep 17 00:00:00 2001
|From: stojshic <stojshic@arch.pc>
|Date: Tue, 6 Feb 2024 19:54:47 +0100
|Subject: [PATCH] Modified to work with two monitors, 'ModKey + <' [or 'ModKey
| + Shift + <'] moves focus [or windows] to left monitor but doesn't bring it
| back to right monitor on another click
|
|---
| dwm.c | 119 ++++++++++++++++++++++++++++++++++++++++------------------
| 1 file changed, 82 insertions(+), 37 deletions(-)
|
|diff --git a/dwm.c b/dwm.c
|index e5efb6a..2234780 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 160.
Hunk #2 succeeded at 194.
Hunk #3 succeeded at 206.
Hunk #4 succeeded at 681.
Hunk #5 succeeded at 696.
Hunk #6 succeeded at 738.
Hunk #7 succeeded at 825.
Hunk #8 succeeded at 962.
Hunk #9 succeeded at 1398.
Hunk #10 succeeded at 1556.
Hunk #11 succeeded at 1658.
Hunk #12 succeeded at 1690.
Hunk #13 succeeded at 2184.
Hmm...  Ignoring the trailing garbage.
done