--- /dev/null
+#!/bin/sh
+#
+# Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: tabify-changes,v 1.4 2007/06/19 23:47:24 tbox Exp $
+
+expand ${1} |
+sed \
+-e 's/^\([1-9][0-9][0-9][0-9][0-9][0-9]\.\) */\1 /' \
+-e 's/^\([1-9][0-9][0-9][0-9][0-9]\.\) */\1 /' \
+-e 's/^\([1-9][0-9][0-9][0-9]\.\) */\1 /' \
+-e 's/^\( [1-9][0-9][0-9]\.\) */\1 /' \
+-e 's/^\( [1-9][0-9]\.\) */\1 /' \
+-e 's/^\( [1-9]\.\) */\1 /' \
+-e 's/\( \[.\]\) */\1 /' \
+-e 's/\( \[..\]\) */\1 /' \
+-e 's/\( \[...\]\) */\1 /' \
+-e 's/\( \[....\]\) */\1 /' \
+-e 's/\( \[.....\]\) */\1 /' \
+-e 's/\( \[......\]\) */\1 /' \
+-e 's/\( \[.......\]\) */\1 /' \
+-e 's/\( \[........\]\) */\1 /' \
+-e 's/\( \[.........\]\) */\1 /' \
+-e 's/\( \[..........\]\) */\1 /' \
+-e 's/\( \[...........\]\) */\1 /' \
+-e 's/\( \[............\]\) */\1 /' \
+-e 's/[ ]*$//' |
+unexpand