Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From d77f364af4d685a614545120d4fa28e9e3770c5e Mon Sep 17 00:00:00 2001
|From: sewn <sewn@disroot.org>
|Date: Wed, 7 Jun 2023 14:46:03 +0300
|Subject: [PATCH] Pass selected text to a plumber program
|
|---
| config.def.h |  7 +++++++
| st.c         | 11 ++++++++++-
| st.h         |  4 ++++
| x.c          | 28 ++++++++++++++++++++++++++++
| 4 files changed, 49 insertions(+), 1 deletion(-)
|
|diff --git a/config.def.h b/config.def.h
|index 91ab8ca..1f5b17a 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 170.
Hunk #2 succeeded at 187.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/st.c b/st.c
|index 134e724..626efa3 100644
|--- a/st.c
|+++ b/st.c
--------------------------
Patching file st.c using Plan A...
Hunk #1 succeeded at 225.
Hunk #2 succeeded at 1055.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/st.h b/st.h
|index fd3b0d8..cca6468 100644
|--- a/st.h
|+++ b/st.h
--------------------------
Patching file st.h using Plan A...
Hunk #1 succeeded at 81.
Hunk #2 succeeded at 126.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/x.c b/x.c
|index aa09997..1cca84e 100644
|--- a/x.c
|+++ b/x.c
--------------------------
Patching file x.c using Plan A...
Hunk #1 succeeded at 5.
Hunk #2 succeeded at 56.
Hunk #3 succeeded at 294.
Hmm...  Ignoring the trailing garbage.
done