anchor.diff:  4,Apache License Version 2.0
   1,Apache License version 2
   4,Apache License V2.0
  -6,Apache License 2.0
  +7,Apache License 2.0
   7,Apache License (2.0)
   1,Apache Licence 2.0
  -43,Apache 2.0
  +44,Apache 2.0
   2,Apache 2
   8,Apache
   1,all of them
  
positive.code: 1,BSD-3-clause
  7,BSD 3-Clause
  2,BSD 2-Clause
  22,BSD
  1,Beerware
  4,Artistic 2.0
  1,APLv2
  1,APL 2.0
  
negative.code: 2,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  1,mit
  1373,MIT
  3,LGPLv3
  1,LGPLv2.1+
  1,LGPLv2.1
  