anchor.diff:  1,"Proprietary"
   1,"Perl Artistic v2"
   1,"MIT-LICENSE"
  -841,"MIT"
  +854,"MIT"
   1,"MIT License"
   1,"MIT (see LICENSE file)"
   1,"LPGL-3"
  
positive.code: 2,"GPL3"
  2,"GPL-3.0+"
  3,"GPL-3.0"
  6,"GPL-3"
  1,"GPL-2.0"
  11,"GPL-2"
  4,"GPL"
  
negative.code: 1,"BSD-3"
  6,"BSD-2-Clause"
  2,"BSD-2"
  10,"BSD"
  1,"BSD 3-Clause"
  1,"BSD 2-Clause"
  1,"Boost"
  