anchor.diff:  2,"Apache License 2.0"
   2,"Apache License (2.0)"
   1,"Apache Licence v2"
  -8,"Apache 2.0"
  +11,"Apache 2.0"
   1,"AGPL3"
   1,"AGPL-3.0"
  
positive.code: 1,"UNLICENSE"
  1,"The Ruby License"
  1,"Suvankar"
  4,"Ruby"
  2,"RUBY"
  3,"Public Domain"
  2,"Public Domain (CC0)"
  1,"Perl Artistic v2"
  1,"MIT-LICENSE"
  538,"MIT"
  1,"MIT License"
  1,"LPGL-3"
  1,"LGPL3"
  
negative.code: 5,"GPL-3"
  1,"GPL-2.0"
  7,"GPL-2"
  3,"GPL"
  8,"GPL 2"
  1,"GNU"
  1,"GNU V2"
  1,"GNU GPL v2"
  1,"EPL-1.0"
  1,"CDDL-1.0"
  1,"BSD-3"
  5,"BSD-2-Clause"
  1,"BSD-2"
  6,"BSD"
  1,"BSD 3-Clause"
  1,"BSD 2-Clause"
  1,"Beerware"
  1,"Artistic 2.0"
  2,"APLv2"
  1,"apachev2"
  1,"APACHE2"
  5,"Apache-2.0"
  5,"Apache"
  1,"Apache v2.0"
  