Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From ae14b869d7bc0e0cd8ed16157837ad09aaacacc0 Mon Sep 17 00:00:00 2001
|From: David Gricar <coppie@protonmail.com>
|Date: Tue, 17 Mar 2020 13:38:05 +0100
|Subject: [PATCH] Add switch to provide initial working directory
|
|This patch adds -p switch which takes one argument 'path' and can be
|used to set the initial working directory of the new st instance.
|It acts the same as running 'cd path' command after starting the st
|instance.
|---
| st.1 |  8 ++++++++
| x.c  | 13 +++++++++----
| 2 files changed, 17 insertions(+), 4 deletions(-)
|
|diff --git a/st.1 b/st.1
|index e8d6059..a901122 100644
|--- a/st.1
|+++ b/st.1
--------------------------
Patching file st.1 using Plan A...
Hunk #1 succeeded at 6.
Hunk #2 succeeded at 32.
Hunk #3 succeeded at 62.
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 48a6676..fab2ddc 100644
|--- a/x.c
|+++ b/x.c
--------------------------
Patching file x.c using Plan A...
Hunk #1 succeeded at 250.
Hunk #2 succeeded at 1959.
Hunk #3 succeeded at 2016.
Hunk #4 succeeded at 2038.
Hmm...  Ignoring the trailing garbage.
done