Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -pu dwm.hide_vacant_tags/config.def.h dwm.programtags+hidewithvacanttags/config.def.h
|--- dwm.hide_vacant_tags/config.def.h	2021-03-15 16:37:24.586622415 -0500
|+++ dwm.programtags+hidewithvacanttags/config.def.h	2021-03-15 16:32:37.586956549 -0500
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 21.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
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|diff -pu dwm.hide_vacant_tags/dwm.c dwm.programtags+hidewithvacanttags/dwm.c
|--- dwm.hide_vacant_tags/dwm.c	2021-03-15 16:37:38.189939908 -0500
|+++ dwm.programtags+hidewithvacanttags/dwm.c	2021-03-15 16:32:23.693639390 -0500
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 20.
Hunk #2 succeeded at 272 (offset -1 lines).
Hunk #3 failed at 440.
Hunk #4 succeeded at 704 (offset -5 lines).
Hunk #5 failed at 714.
Hunk #6 failed at 736.
3 out of 6 hunks failed
done