gunzip

# File lib/rubygems/util.rb, line 12
  def self.gunzip(data)
    require 'zlib'
    require 'stringio'
    data = StringIO.new(data, 'r')

    unzipped = Zlib::GzipReader.new(data).read
    unzipped.force_encoding Encoding::BINARY
    unzipped
  end