D 2018-07-23T14:16:53.906 L tclcrc U alex W 465
package require tclcrc ?1.0? crc64ecma string ?initValue?
Copyright (C) 2014 Alexander Schoepe and Joerg Mehring, Bochum, DE
Copyright (C) Lasse Collin crc64 public domain - tcl package license BSD-3