Rotate an SGF record of a game of Go
$ sgfrotate [90|180] [infile|- [outfile|-]]
The defaults are to rotate by 180 degrees and read/write STDIN/OUT.
Copyright 2010 David Cantrell <email@example.com>
This software is free-as-in-speech software, and may be used, distributed, and modified under the terms of either the GNU General Public Licence version 2 or the Artistic Licence. It's up to you which one you use. The full text of the licences can be found in the files GPL2.txt and ARTISTIC.txt, respectively.