anchor.diff:  4,GPLv3
   2,GPLv2
   4,GPL3
  -8,GPL-3
  +9,GPL-3
   15,GPL-2
   1,GPL v3.0
   1,GPL Lv.3
  
positive.code: 1,Beerware
  4,Artistic 2.0
  1,APLv2
  1,apachev2
  1,apache2
  8,APACHE2
  
negative.code: 2,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  1,mit
  1230,MIT
  2,LGPLv3
  1,LGPLv2.1+
  1,LGPLv2.1
  