anchor.diff:  1,"THE (extended) BEER-WARE LICENSE"
   1,"Stanford University Libraries"
   6,"Simplified BSD"
  +1,"SIL Open Font License"
   1,"See LICENSE."
   1,"See https://github.com/danlucraft/swt/blob/master/LICENSE"
   1,"Same As Ruby's"
   3,"Ruby's"
   1,"Ruby's or GPLv2 or later"
  -12,"Ruby"
  +1,"ruby"
   1,"RUBY"
  +13,"Ruby"
   1,"Ruby or LGPLv3+"
   1,"Ruby License"
  +1,"Ruby License (2-clause BSDL or Artistic)"
  +1,"Ruby 1.8"
   2,"R2CORBA"
   1,"PUBLIC DOMAIN"
  -38,"Public Domain"
   4,"Public domain"
  +1,"public domain"
  +41,"Public Domain"
   1,"Public Domain License"
  -1,"Proprietary"
  +2,"Proprietary"
  +1,"Perl Artistic v2"
   1,"PayPal SDK License"
   1,"PAL"
   1,"OWL"
  
positive.code: count,license
  2,"zlib/libpng"
  1,"zlib"
  17,"WTFPL"
  1,"WTFDBAL"
  1,"WTF"
  1,"Various"
  3,"UNLICENSE"
  4,"Unlicense"
  
negative.code: 1,"GSLv3"
  1,"GPLv3.0"
  1,"GPLv3+: GNU General Public License version 3 or later"
  5,"GPLv3+"
  33,"GPLv3"
  5,"GPLv2+"
  19,"GPLv2"
  11,"GPL3"
  4,"GPL2"
  4,"GPL-3.0"
  10,"GPL-3+"
  44,"GPL-3"
  1,"GPL-2.0"
  50,"GPL-2"
  40,"GPL"
  1,"GPL v3.0"
  3,"GPL v3"
  2,"GPL v2"
  1,"GPL Lv.3"
  5,"GPL 2"
  1,"GNU"
  4,"GNU LGPL"
  1,"GNU LGPL v3"
  1,"GNU LGPL 3"
  2,"GNU Lesser General Public License, Version 3.0"
  2,"GNU GPLv3"
  1,"GNU GPLv3 and AGPLv3"
  3,"GNU GPL-3"
  4,"GNU GPL"
  1,"GNU GPL v2"
  2,"GNU General Public License"
  2,"FreeBSD"
  1,"Free as in beer."
  1,"FeiJi"
  2,"EPLv1"
  1,"EPL"
  1,"EPL 1.0"
  1,"ECLv2"
  1,"CPL"
  1,"Copyright 2013 Joe McIlvain. MIT Licensed."
  1,"Copyright 2013 Joe McIlvain. All rights reserved."
  1,"Copyright 2013 Joe McIlvain"
  1,"Copyright 2013 AgileWings"
  