Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -urp dmenu-4.6/config.def.h dmenu-4.6-patched/config.def.h
|--- dmenu-4.6/config.def.h	2015-11-09 06:42:21.000000000 +0800
|+++ dmenu-4.6-patched/config.def.h	2016-04-03 10:59:02.413544865 +0800
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 15.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -urp dmenu-4.6/dmenu.c dmenu-4.6-patched/dmenu.c
|--- dmenu-4.6/dmenu.c	2015-11-09 06:42:21.000000000 +0800
|+++ dmenu-4.6-patched/dmenu.c	2016-04-03 10:54:51.798552270 +0800
--------------------------
Patching file dmenu.c using Plan A...
Hunk #1 succeeded at 52.
Hunk #2 succeeded at 282.
Hunk #3 succeeded at 444.
Hunk #4 succeeded at 521.
Hunk #5 succeeded at 715.
Hunk #6 succeeded at 740.
Hunk #7 succeeded at 774.
done