[erlang-patches] Fix the type spec from the doc of binary:part/3

[Ricardo Catalinas Jiménez]

As the doc explains, the Len of part() can be negative.

Please fetch:
git fetch git://github.com/jimenezrick/otp.git fix-binary-doc-spec

Review here:
https://github.com/jimenezrick/otp/compare/erlang:maint...jimenezrick:fix-binary-doc-spec
https://github.com/jimenezrick/otp/compare/erlang:maint...jimenezrick:fix-binary-doc-spec.patch


Regards
-- 
Ricardo (http://r.untroubled.be/)