astro: remove 'Created by' lines
A big Thank You to the original contributors of these ports:
* ABURAYER Rewsirow <rewsirow@ff.iij4u.or.jp>
* Alexander Leidinger
* Alexey Dokuchaev <danfe@FreeBSD.org>
* Andrew Pantyukhin <infofarmer@FreeBSD.org>
* Andrey Zakhvatov
* Anton Berezin <tobez@FreeBSD.org>
* Anton Berezin <tobez@tobez.org>
* Anton Karpov <toxa@toxahost.ru>
* Brion Moss <brion@queeg.com>
* Bruce M Simpson <bms@FreeBSD.org>
* Chris Piazza <cpiazza@FreeBSD.org>
* Christian Brueffer <chris@unixpages.org>
* David Wolfskill
* Frank W. Josellis <frank@dynamical-systems.org>
* Gea-Suan Lin <gslin@gslin.org>
* Gleb Smirnoff <glebius@FreeBSD.org>
* Hye-Shik Chang <perky@fallin.lv>
* Jan Srzednicki <w@wrzask.pl>
* Jean-Yves Lefort <jylefort@FreeBSD.org>
* Jean-Yves Lefort <jylefort@brutele.be>
* Jeremy Shaffner <jeremy@external.org>
* Keith Walker <kew@icehouse.net>
* Kirill Ponomarew <ponomarew@oberon.net>
* Kris Kennaway <kkennawa@physics.adelaide.edu.au>
* Kris Kennaway <kris@FreeBSD.org
* Laurent Courty
* Loïc BARTOLETTI <lbartoletti@FreeBSD.org>
* Lukas Maly <Iam@LukasMaly.NET>
* Markus Brueffer <markus@FreeBSD.org>
* Mathias Monnerville <mathias@monnerville.com>
* Muhammad Moinur Rahman <bofh@FreeBSD.org>
* Patrick Li <pat@FreeBSD.org>
* Patrick Li <pat@databits.net>
* Piero Serini <piero@FreeBSD.org>
* Po-Chuan Hsieh <sunpoet@FreeBSD.org>
* Simon Olofsson <simon@olofsson.de>
* Slaven Rezic <slaven@rezic.de>
* Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
* Sunpoet Po-Chuan Hsieh <sunpoet@sunpoet.net>
* Sébastien Santoro <dereckson@gmail.com>
* TAKATSU Tomonari <tota@FreeBSD.org>
* Tatsuki Makino <tatsuki_makino@hotmail.com>
* Tony Maher <tonymaher@optusnet.com.au>
* Wen Heping <wen@FreeBSD.org>
* Wen Heping <wenheping@gmail.com>
* Wen Heping<wen@FreeBSD.org>
* Will Andrews <andrews@technologist.com>
* asami
* chuck@pkix.net
* crwhipp@gmail.com
* darius@dons.net.au
* db
* erich@FreeBSD.org
* freebsd-ports@henrik.synth.no
* ijliao
* nwhitehorn
* pat
* searle
* thierry@pompo.net
* torstenb
* trevor
* will
With hat: portmgr
b15254402b