Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 0ac50d43c5a48de34a53db8240143e4fb39239d3 Mon Sep 17 00:00:00 2001
|From: bakkeby <bakkeby@gmail.com>
|Date: Fri, 22 May 2020 13:51:06 +0200
|Subject: [PATCH] The moveresize patch allows floating windows to be resized
| and moved using keyboard shortcuts.
|
|This example keybinding reduces the y position with 25 pixels.
|
|	{ MODKEY,                       XK_Up,     moveresize,     {.v = "0x -25y 0w 0h" } },
|
|Use capital letters to specify absolute size and position should you need it.
|
|    { MODKEY,                       XK_Up,     moveresize,     {.v = "0x 0y 500W 300H" } },
|
|The above example would set the size of the client to 300x500 pixels, but leave the position as-is.
|
|Refer to:
|https://dwm.suckless.org/patches/moveresize/
|---
| config.def.h |  8 +++++++
| dwm.c        | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++
| 2 files changed, 74 insertions(+)
|
|diff --git a/config.def.h b/config.def.h
|index 1c0b587..ff863c9 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 78.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/dwm.c b/dwm.c
|index 4465af1..89483c1 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 182.
Hunk #2 succeeded at 1193.
Hmm...  Ignoring the trailing garbage.
done