Ensure path and path with extension are identical.
# File lib/rubygems/indexer.rb, line 345
def paranoid(path, extension)
data = Gem.read_binary path
compressed_data = Gem.read_binary "#{path}.#{extension}"
unless data == Gem.inflate(compressed_data) then
raise "Compressed file #{compressed_path} does not match uncompressed file #{path}"
end
end