anchor.diff:  7,Apache License (2.0)
   1,Apache Licence 2.0
   40,Apache 2.0
  -1,Apache 2
  +2,Apache 2
   8,Apache
   1,all of them
  -4,AGPL
  +1,AGPL3
  +5,AGPL
   1,3-clause BSD
  
positive.code: 4,GPLv3
  2,GPLv2
  4,GPL3
  8,GPL-3
  15,GPL-2
  1,GPL v3.0
  1,GPL Lv.3
  
negative.code: 2,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  1,mit
  1230,MIT
  2,LGPLv3
  1,LGPLv2.1+
  1,LGPLv2.1
  