Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From f7fb9a9597ec1f428455e9ef1cfcdac879a7af83 Mon Sep 17 00:00:00 2001
|From: Justinas Grigas <jstn_as@protonmail.com>
|Date: Fri, 4 Jun 2021 10:44:24 +0000
|Subject: [PATCH] [PATCH] cycles between fonts
|
|this is an update to the original cyclefonts patch which doesn't apply
|cleanly to the git version, with some tweaks.
|
|currentfont is now of type size_t.
|cycling fonts now properly redraws the screen.
|optional font can be loaded at the start.
|---
| config.def.h |  7 ++++++-
| x.c          | 14 +++++++++++++-
| 2 files changed, 19 insertions(+), 2 deletions(-)
|
|diff --git a/config.def.h b/config.def.h
|index 6f05dce..ff9bac9 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 5.
Hunk #2 succeeded at 203.
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 7186040..9a658fa 100644
|--- a/x.c
|+++ b/x.c
--------------------------
Patching file x.c using Plan A...
Hunk #1 succeeded at 59.
Hunk #2 succeeded at 329.
Hunk #3 succeeded at 1127.
Hmm...  Ignoring the trailing garbage.
done