shells: remove 'Created by' lines
A big Thank You to the original contributors of these ports:
- Adam Weinberger <adamw@FreeBSD.org>
- Andreas Kohn <andreas@syndrom23.de>
- Carlos Jacobo Puga Medina <cpm@FreeBSD.org>
- Cyrille.Lefevre@laposte.net
- Danijel Tasov <danielt@pilgerer.org>
- David O'Brien <obrien@NUXI.com>
- Emanuel Haupt <ehaupt@FreeBSD.org>
- Hajimu UMEMOTO <ume@FreeBSD.org>
- Igor Pokrovsky <ip@unixway.org>
- Jean-Yves Lefort <jylefort@brutele.be>
- Kai Wang <kaiw27@gmail.com>
- Martin Wilke <miwi@FreeBSD.org>
- Nobuhiro Yasutomi <nobu@psrc.isac.co.jp>
- Oliver Eikemeier
- Patrick Gardella <patrick@FreeBSD.org>
- Pawel Pekala <pawel@FreeBSD.org>
- Po-Chuan Hsieh <sunpoet@FreeBSD.org>
- Richard Rose <freebsd-security@rikrose.net>
- Sean Chittenden <seanc@FreeBSD.org>
- Sergey Matveychuk <sem@FreeBSD.org>
- Serhii (Sergey) Kozlov <skozlov@FreeBSD.org>
- Shinsuke Matsui <smatsui@karashi.org>
- Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
- Sylvio Cesar <sylvio@FreeBSD.org>
- Thomas Gellekum <tg@FreeBSD.org>
- UMENO Takashi <umeno@rr.iij4u.or.jp>
- Vaida Bogdan
- Will Andrews <andrews@technologist.com>
- Ying-Chieh Liao <ijliao@FreeBSD.org>
- conrads@cox.net
- erich@rrnet.com
- gebhart@secnetix.de
- kirk@strauser.com
- mcglk@artlogix.com
- torstenb
With hat: portmgr