/usr/ is in ruby-amq-protocol 2.0.1-1.
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..
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/amq/
/usr/lib/ruby/vendor_ruby/amq/protocol.rb
/usr/lib/ruby/vendor_ruby/amq/endianness.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/
/usr/lib/ruby/vendor_ruby/amq/protocol/float_32bit.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/type_constants.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/table.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/table_value_encoder.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/constants.rb
/usr/share/doc/ruby-amq-protocol/changelog.Debian.gz
/usr/lib/ruby/vendor_ruby/amq/protocol/exceptions.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/table_value_decoder.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/frame.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/version.rb
/usr/lib/ruby/vendor_ruby/amq/protocol/client.rb
/usr/lib/ruby/vendor_ruby/amq/settings.rb
/usr/lib/ruby/vendor_ruby/amq/uri.rb
/usr/lib/ruby/vendor_ruby/amq/int_allocator.rb
/usr/lib/ruby/vendor_ruby/amq/bit_set.rb
/usr/lib/ruby/vendor_ruby/amq/pack.rb
/usr/share/
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/amq-protocol-2.0.1.gemspec
/usr/share/doc/
/usr/share/doc/ruby-amq-protocol/
/usr/share/doc/ruby-amq-protocol/copyright
/usr/share/doc/ruby-amq-protocol/README.md