Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 9102fdb9c670218373bbe83c891c8e8138d6a6f4 Mon Sep 17 00:00:00 2001
|From: redacted <redacted@example.com>
|Date: Tue, 23 Apr 2019 00:39:27 +0100
|Subject: [PATCH] added noborder patch
|
|---
| dwm.c | 7 +++++++
| 1 file changed, 7 insertions(+)
|
|diff --git a/dwm.c b/dwm.c
|index 4465af1..685eca1 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 1282.
Hmm...  Ignoring the trailing garbage.
done