anchor.diff:  1,BSD-3-clause
   8,BSD 3-Clause
   3,BSD 2-Clause
  -26,BSD
  +28,BSD
   1,Beerware
   1,BAT
   4,Artistic 2.0
   1,APLv2
   1,APL 2.0
   1,apachev2
  -9,APACHE2
   1,apache2
  +10,APACHE2
   3,Apache-2.0
   1,Apache, Version 2.0
   2,Apache v2
  
positive.code: 1,PAL
  1,New-BSD
  3,New BSD License
  1,MPL
  3,MIT-LICENSE
  1,MIT, Simplified BSD, Apache 2.0
  1,MIT, Apache License v2.0
  2,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  1493,MIT
  1,mit
  3,LGPLv3
  1,LGPLv2.1+
  1,LGPLv2.1
  
negative.code: 2,http://www.apache.org/licenses/LICENSE-2.0.txt
  1,GSLv3
  1,GPLv3+
  5,GPLv3
  2,GPLv2
  5,GPL3
  12,GPL-3
  