[ruby/fiddle] Fix PACK_MAP for unsigned types (https://github.com/ruby/fiddle/pull/110)
https://github.com/ruby/fiddle/commit/4a71246645ccff001292c9d80b855b2ef5bf06c1
[ruby/fiddle] Fix PACK_MAP for unsigned types (https://github.com/ruby/fiddle/pull/110)
https://github.com/ruby/fiddle/commit/4a71246645ccff001292c9d80b855b2ef5bf06c1