anchor.diff:  1,BSD-2-Clause
   8,BSD 3-Clause
   3,BSD 2-Clause
  -29,BSD
  +30,BSD
   1,Beerware
   1,BAT
   4,Artistic 2.0
  
positive.code: 7,WTFPL
  1,WTF
  1,Various
  1,THE (extended) BEER-WARE LICENSE
  5,Simplified BSD
  1,Ruby's or GPLv2 or later
  
negative.code: 15,GPL-3
  17,GPL-2
  1,GPL v3.0
  1,GPL v2
  1,GPL Lv.3
  12,GPL
  1,GNU LGPL v3
  