Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 9b5719969ce85c3ecc0238d49c0255c5c2cc79f0 Mon Sep 17 00:00:00 2001
|From: mihirlad55 <mihirlad55@gmail.com>
|Date: Mon, 10 Aug 2020 01:39:28 +0000
|Subject: [PATCH] Add support for managing external status bars
|
|This patch allows dwm to manage other status bars such as
|polybar/lemonbar without them needing to set override-redirect. For
|all intents and purposes, DWM treats this bar as if it were its own
|and as a result helps the status bar and DWM live in harmony.
|
|This has a few advantages
|* The bar does not block fullscreen windows
|* DWM makes room for the status bar, so windows do not overlap the bar
|* The bar can be hidden/killed and DWM will not keep an unsightly gap
|  where the bar was
|* DWM receives EnterNotify events when your cursor enters the bar
|
|To use another status bar, set usealtbar to 1 in your config.h and set
|altbarclass to the class name (can be found using xprop) to the class
|name of your status bar. Also make sure that if your status bar will
|be displayed on top, topbar is set to 1 in your config, and if it will
|be displayed on bottom, topbar is set to 0. This patch does not
|support bars that are not docked at the top or at the bottom of your
|monitor.
|
|This verison of the patch fixes handling of polybar's tray.
|
|The patch is developed at https://github.com/mihirlad55/dwm-anybar
|---
| config.def.h |   4 ++
| dwm.c        | 192 +++++++++++++++++++++++++++++++++++++++++++++++----
| 2 files changed, 181 insertions(+), 15 deletions(-)
|
|diff --git a/config.def.h b/config.def.h
|index 1c0b587..f45211b 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 5.
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 9fd0286..c1d8ce0 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 47.
Hunk #2 succeeded at 116.
Hunk #3 succeeded at 130.
Hunk #4 succeeded at 181.
Hunk #5 succeeded at 199.
Hunk #6 succeeded at 212.
Hunk #7 succeeded at 222.
Hunk #8 succeeded at 238.
Hunk #9 succeeded at 514.
Hunk #10 succeeded at 579.
Hunk #11 succeeded at 650.
Hunk #12 succeeded at 661.
Hunk #13 succeeded at 713.
Hunk #14 succeeded at 1097.
Hunk #15 succeeded at 1156.
Hunk #16 succeeded at 1454.
Hunk #17 succeeded at 1471.
Hunk #18 succeeded at 1632.
Hunk #19 succeeded at 1681.
Hunk #20 succeeded at 1740.
Hunk #21 succeeded at 1796.
Hunk #22 succeeded at 1890.
Hunk #23 succeeded at 1932.
Hunk #24 succeeded at 1969.
Hunk #25 succeeded at 2210.
Hmm...  Ignoring the trailing garbage.
done