vietnamese: remove 'Created by' lines
A big Thank You to the original contributors of these ports:
- Alexander Yerenkow <yerenkow@gmail.com>
- David O'Brien (obrien@NUXI.com)
- David O'Brien (obrien@cs.ucdavis.edu)
- David O'Brien <obrien@NUXI.com>
- Thierry Thomas <thierry@pompo.net>
- chinsan
With hat: portmgr