sync code with last improvements from OpenBSD

distrib/sets/checkflist

@@ -0,0 +1,43 @@
+#!/bin/sh -x
+#	$OpenBSD: checkflist,v 1.2 2014/05/03 15:18:26 todd Exp $
+#
+# Copyright (c) 2001 Theo de Raadt
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+if [ "X${DESTDIR}" = "X" ]; then
+	echo DESTDIR must be set
+	exit 1
+fi
+
+diffarg=""
+if [ "$1" = "-u" ]; then
+	diffarg="-u"
+	shift
+fi
+
+TMP=`mktemp /tmp/_xckr.XXXXXXXXXX` || exit 1
+trap 'rm -f $TMP' 0 1 15
+
+sh makeflist > $TMP
+( cd $DESTDIR ; find . \( -type d -o -type f -o -type l \) ) | \
+    grep -v -e '^\.$' | sort -H | diff $diffarg $TMP -