=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for docbook2mdoc-1.1.0.tgz
=> Checksum RMD160 OK for docbook2mdoc-1.1.0.tgz
=> Checksum SHA512 OK for docbook2mdoc-1.1.0.tgz
===> Installing dependencies for docbook2mdoc-1.1.0
=> Tool dependency nbpatch-[0-9]*: found nbpatch-20151107
=> Tool dependency checkperms>=1.1: found checkperms-1.12
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
===> Skipping vulnerability checks.
WARNING: No /opt/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/opt/pkg/sbin/pkg_admin -K /opt/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Overriding tools for docbook2mdoc-1.1.0
===> Extracting for docbook2mdoc-1.1.0
===> Patching for docbook2mdoc-1.1.0
=> Applying pkgsrc patches for docbook2mdoc-1.1.0
=> Verifying /opt/pkgsrc/textproc/docbook2mdoc/patches/patch-Makefile
=> Applying pkgsrc patch /opt/pkgsrc/textproc/docbook2mdoc/patches/patch-Makefile
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|$NetBSD: patch-Makefile,v 1.3 2019/08/25 17:53:59 ng0 Exp $
|
|Honor LDFLAGS.
|Support PKGMANDIR.
|
|--- Makefile.orig	2014-04-30 13:21:35.000000000 +0000
|+++ Makefile
--------------------------
Patching file Makefile using Plan A...
Hunk #1 succeeded at 11.
done
===> Creating toolchain wrappers for docbook2mdoc-1.1.0
===> Configuring for docbook2mdoc-1.1.0
=> Checking for portability problems in extracted files