Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff '--color=auto' -up dwm-6.2/config.def.h dwm-6.2-new/config.def.h
|--- dwm-6.2/config.def.h	2019-02-02 12:55:28.000000000 +0000
|+++ dwm-6.2-new/config.def.h	2020-04-26 13:51:06.713332746 +0100
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 26.
Hunk #2 succeeded at 60.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff '--color=auto' -up dwm-6.2/dwm.c dwm-6.2-new/dwm.c
|--- dwm-6.2/dwm.c	2019-02-02 12:55:28.000000000 +0000
|+++ dwm-6.2-new/dwm.c	2020-04-26 13:55:56.820584361 +0100
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 93.
Hunk #2 succeeded at 140.
Hunk #3 succeeded at 208.
Hunk #4 succeeded at 291.
Hunk #5 succeeded at 304.
Hunk #6 succeeded at 314.
Hunk #7 succeeded at 1659.
Hunk #8 succeeded at 1740.
done