anchor.diff:  count,license
  -7,WTFPL
  +8,WTFPL
   1,WTF
   1,Various
   1,UNLICENSE
  
positive.code: 2,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  2,mit
  1734,MIT
  3,LGPLv3
  1,LGPLv2.1+
  1,LGPLv2.1
  
negative.code: 1,BSD-2-Clause
  8,BSD 3-Clause
  3,BSD 2-Clause
  31,BSD
  1,Beerware
  1,BAT
  4,Artistic 2.0
  