getFileMd5

Calculate the md5 fingerprint of a file.

This functions contains a part of code under GNU GPL 2.0 license :
http://www.gnu.org/licenses/gpl-2.0.html
You must agree the terms of this (free) license and inform the users.

Prototype :

fun [P] S

P : reference of the file

Return : S this fingerprint or nil if error

See also :

syspackSupportedVersion