Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 5aee7d1488354322462e243416e27e026d73e0eb Mon Sep 17 00:00:00 2001
|From: Miles Alan <m@milesalan.com>
|Date: Tue, 16 Jun 2020 21:40:30 -0500
|Subject: [PATCH] Add -wm flag to run dmenu as managed WM window (e.g. no
| override_redirect)
|
|---
| dmenu.1 |  4 ++++
| dmenu.c | 20 +++++++++++++++++---
| 2 files changed, 21 insertions(+), 3 deletions(-)
|
|diff --git a/dmenu.1 b/dmenu.1
|index 323f93c..89a9493 100644
|--- a/dmenu.1
|+++ b/dmenu.1
--------------------------
Patching file dmenu.1 using Plan A...
Hunk #1 succeeded at 22.
Hunk #2 succeeded at 81.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/dmenu.c b/dmenu.c
|index 6b8f51b..4632eb4 100644
|--- a/dmenu.c
|+++ b/dmenu.c
--------------------------
Patching file dmenu.c using Plan A...
Hunk #1 succeeded at 44.
Hunk #2 succeeded at 199.
Hunk #3 succeeded at 652.
Hunk #4 succeeded at 666.
Hunk #5 succeeded at 717.
Hmm...  Ignoring the trailing garbage.
done