$NetBSD$

Add LOAD_PATH

--- bin/docdiff.orig	2022-10-15 12:03:22.696894976 +0900
+++ bin/docdiff	2022-10-15 12:05:50.226046031 +0900
@@ -2,6 +2,7 @@
 # DocDiff: word/character-oriented text comparison utility
 # Copyright (C) 2002-2011 Hisashi MORITA
 # Requirements: Ruby (>= 2.0)
+$LOAD_PATH.unshift "@@LIBRARY@@"
 require 'docdiff'
 require 'optparse'