class Falcon::Adapters::Rack

@parameter env [Hash] The rack request `env`.
@parameter headers [Protocol::HTTP::Headers] The raw HTTP request headers.

Rack separates multiple headers with the same key, into a single field with multiple lines.

Unwrap raw HTTP headers into the CGI-style expected by Rack middleware.

def unwrap_headers(headers, env)
	headers.each do |key, value|
		http_key = "HTTP_#{key.upcase.tr('-', '_')}"
		
		if current_value = env[http_key]
			env[http_key] = "#{current_value};#{value}"
		else
			env[http_key] = value
		end
	end
end