anchor.diff:  1,THE (extended) BEER-WARE LICENSE
   5,Simplified BSD
   1,Ruby's or GPLv2 or later
  +1,Ruby's
   1,Ruby License
   4,Ruby
  +2,R2CORBA
  +20,Public Domain
   3,Public domain
  -20,Public Domain
   1,Proprietary
   1,PAL
   1,New-BSD
  
positive.code: 2,http://www.apache.org/licenses/LICENSE-2.0.txt
  1,GSLv3
  1,GPLv3+
  6,GPLv3
  2,GPLv2
  5,GPL3
  14,GPL-3
  16,GPL-2
  1,GPL v3.0
  1,GPL Lv.3
  12,GPL
  1,GNU Lesser General Public License, Version 3.0
  1,GNU GPLv3 and AGPLv3
  1,GNU GPL
  
negative.code: 1,APLv2
  1,APL 2.0
  1,apachev2
  1,apache2
  10,APACHE2
  3,Apache-2.0
  1,Apache, Version 2.0
  2,Apache v2
  