Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
tftp -VERSION (return code: 0)
tftp-hpa 5.2, without readline
tftp --help (return code: 64)
Usage: tftp [-4][-6][-v][-l][-m mode] [host [port]] [-c command]