Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -up dmenu-5.2/config.mk dmenu-qalc-5.2/config.mk
|--- dmenu-5.2/config.mk	2022-10-04 13:36:58.000000000 -0400
|+++ dmenu-qalc-5.2/config.mk	2023-10-27 19:29:48.197693355 -0400
--------------------------
Patching file config.mk using Plan A...
Hunk #1 succeeded at 24.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -up dmenu-5.2/dmenu.1 dmenu-qalc-5.2/dmenu.1
|--- dmenu-5.2/dmenu.1	2022-10-04 13:36:58.000000000 -0400
|+++ dmenu-qalc-5.2/dmenu.1	2023-10-27 19:28:48.676578875 -0400
--------------------------
Patching file dmenu.1 using Plan A...
Hunk #1 succeeded at 40.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff -up dmenu-5.2/dmenu.c dmenu-qalc-5.2/dmenu.c
|--- dmenu-5.2/dmenu.c	2022-10-04 13:36:58.000000000 -0400
|+++ dmenu-qalc-5.2/dmenu.c	2023-10-27 20:00:21.438467597 -0400
--------------------------
Patching file dmenu.c using Plan A...
Hunk #1 succeeded at 7.
Hunk #2 succeeded at 39.
Hunk #3 succeeded at 239.
Hunk #4 succeeded at 608.
Hunk #5 succeeded at 660.
Hunk #6 succeeded at 812.
Hunk #7 succeeded at 829.
Hunk #8 succeeded at 881.
done