anchor.diff:  6,Apache License 2.0
   6,Apache License (2.0)
   1,Apache Licence 2.0
  -31,Apache 2.0
  +33,Apache 2.0
   1,Apache 2
   7,Apache
   1,all of them
  
positive.code: 1,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  1,mit
  1066,MIT
  1,LGPLv3
  1,LGPLv2.1+
  1,LGPLv2.1
  
negative.code: 2,ISC
  1,GSLv3
  1,GPLv3+
  4,GPLv3
  2,GPLv2
  3,GPL3
  6,GPL-3
  14,GPL-2
  1,GPL v3.0
  1,GPL Lv.3
  