gem2freebsd: create FreeBSD port files from Ruby gem

[Jyun-Yan You]

hi,

I wrote a small script that can generate gem port files.
Although you still need to modify Makefile, it can reduce some work.


file: http://www.cs.nctu.edu.tw/~jyyou/ruby/gem2freebsd.rb

usage: ruby gem2freebsd.rb gem_name [gem_version]