Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|URL: http://dwm.suckless.org/patches/historical/float_border_color
|float_border_color2 allows you to specify a different border color for floating
|windows.
|
|Index: dwm/config.def.h
|===================================================================
|--- dwm/config.def.h.orig	2014-02-09 15:24:13.708117011 +0100
|+++ dwm/config.def.h	2014-02-09 15:24:13.700117011 +0100
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 11 with fuzz 1 (offset 3 lines).
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|Index: dwm/dwm.c
|===================================================================
|--- dwm/dwm.c.orig	2014-02-09 15:24:13.708117011 +0100
|+++ dwm/dwm.c	2014-02-09 15:24:13.700117011 +0100
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 failed at 792.
Hunk #2 failed at 1043.
Hunk #3 succeeded at 1082 with fuzz 2 (offset 25 lines).
Hunk #4 succeeded at 1563 (offset 33 lines).
Hunk #5 failed at 1684.
3 out of 5 hunks failed
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|Index: dwm/drw.h
|===================================================================
|--- dwm/drw.h.orig	2014-02-09 15:24:13.708117011 +0100
|+++ dwm/drw.h	2014-02-09 15:24:13.700117011 +0100
--------------------------
Patching file drw.h using Plan A...
Hunk #1 succeeded at 23 (offset 3 lines).
done