Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -up a/config.def.h b/config.def.h
|--- a/config.def.h	2019-07-24 08:59:14.429282151 +0200
|+++ b/config.def.h	2019-07-24 10:18:12.954351748 +0200
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 41 (offset -1 lines).
Hunk #2 succeeded at 77 (offset -1 lines).
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|Only in b: config.def.h.orig
|diff -up a/dwm.c b/dwm.c
|--- a/dwm.c	2019-07-24 08:59:14.432615503 +0200
|+++ b/dwm.c	2019-07-24 10:20:33.852636486 +0200
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 157 (offset -1 lines).
Hunk #2 succeeded at 657 (offset -2 lines).
done