anchor.diff:  1,APLv2
   1,APL 2.0
   1,apachev2
  +8,APACHE2
   1,apache2
  -8,APACHE2
   3,Apache-2.0
   2,Apache v2
   7,Apache License, Version 2.0
  
positive.code: 1,GPLv3+
  4,GPLv3
  2,GPLv2
  4,GPL3
  9,GPL-3
  15,GPL-2
  1,GPL v3.0
  1,GPL Lv.3
  
negative.code: 1,AGPL3
  5,AGPL
  1,3-clause BSD
  1,3-Clause BSD
  