Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 111e5d0311f174592ccecee2af11067103abaee7 Mon Sep 17 00:00:00 2001
|From: aleks <aleks.stier@icloud.com>
|Date: Sun, 11 Aug 2019 03:15:26 +0200
|Subject: [PATCH] Make right-click paste
|
|Pressing right-click pastes from the primary-selection.
|If combined with the clipboard-patch right-click pastes from the clipboard.
|Middle-click does nothing.
|---
| x.c | 2 +-
| 1 file changed, 1 insertion(+), 1 deletion(-)
|
|diff --git a/x.c b/x.c
|index 0422421..13a5849 100644
|--- a/x.c
|+++ b/x.c
--------------------------
Patching file x.c using Plan A...
Hunk #1 succeeded at 643.
Hmm...  Ignoring the trailing garbage.
done