Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 5622f9497f5dca83035443a0a00e89c63862b15b Mon Sep 17 00:00:00 2001
|From: Aaron Züger <contact@azureorange.xyz>
|Date: Tue, 28 Mar 2023 18:05:36 +0200
|Subject: [PATCH] Added the -no-escape flag which will stop the escape key from
| exiting dmenu.
|
|---
| dmenu.c | 14 +++++++++++---
| 1 file changed, 11 insertions(+), 3 deletions(-)
|
|diff --git a/dmenu.c b/dmenu.c
|index 4e7df12..203d9bf 100644
|--- a/dmenu.c
|+++ b/dmenu.c
--------------------------
Patching file dmenu.c using Plan A...
Hunk #1 succeeded at 1.
Hunk #2 succeeded at 54.
Hunk #3 succeeded at 450.
Hunk #4 succeeded at 721.
Hunk #5 succeeded at 743.
Hmm...  Ignoring the trailing garbage.
done