Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -upN a/config.def.h b/config.def.h
|--- a/config.def.h	2019-05-28 13:43:00.326646120 +0200
|+++ b/config.def.h	2019-05-28 21:17:55.213171996 +0200
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 36.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -upN a/fibonacci.c b/fibonacci.c
|--- a/fibonacci.c	1970-01-01 01:00:00.000000000 +0100
|+++ b/fibonacci.c	2019-05-28 21:07:51.119850125 +0200
--------------------------
(Creating file fibonacci.c...)
Patching file fibonacci.c using Plan A...
Empty context always matches.
Hunk #1 succeeded at 1.
done