Alternative names for the host

Property definitions

socket $ NativeSocketHostent :: h_aliases
	# Alternative names for the host
	fun h_aliases: Array[String]
	do
		var res = new Array[String]
		loop
			var ha = native_h_aliases(res.length)
			if ha.address_is_null then break
			res.add ha.to_s
		end
		return res
	end
lib/socket/socket_c.nit:322,2--332,4