anchor.diff:  1,APLv2
   1,APL 2.0
   1,apachev2
  +1,apache2
   10,APACHE2
  -1,apache2
   3,Apache-2.0
   1,Apache, Version 2.0
   2,Apache v2
  
positive.code: 1,all of them
  1,AGPL3
  5,AGPL
  1,3-Clause BSD
  1,3-clause BSD
  
negative.code: 1,MIT, Apache License v2.0
  2,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  1628,MIT
  2,mit
  3,LGPLv3
  1,LGPLv2.1+
  