$NetBSD: patch-Makefile,v 1.2 2018/05/11 09:37:13 adam Exp $

Do not build npm-index.html on rebuild.

--- Makefile.orig	2018-05-04 09:28:53.000000000 +0000
+++ Makefile
@@ -23,7 +23,7 @@ files_mandocs = $(shell find doc/files -
                man/man5/npm-json.5 \
                man/man5/npm-global.5
 
-misc_mandocs = $(shell find doc/misc -name '*.md' \
+misc_mandocs = $(shell find doc/misc -name '*.md' \! -name 'npm-index.md' \
                |sed 's|.md|.7|g' \
                |sed 's|doc/misc/|man/man7/|g' ) \
                man/man7/npm-index.7
@@ -39,7 +39,7 @@ files_htmldocs = $(shell find doc/files 
                   html/doc/files/npm-json.html \
                   html/doc/files/npm-global.html
 
-misc_htmldocs = $(shell find doc/misc -name '*.md' \
+misc_htmldocs = $(shell find doc/misc -name '*.md' \! -name 'npm-index.md' \
                  |sed 's|.md|.html|g' \
                  |sed 's|doc/misc/|html/doc/misc/|g' ) \
                  html/doc/index.html