[Dolibarr/dolibarr] 05e08b: FIX Filenames must not contains non ascii char or ...

[Laurent Destailleur]

  Branch: refs/heads/develop
  Home:   https://github.com/Dolibarr/dolibarr
  Commit: 05e08b3596f5d57be85116c8b48216a913ea029b
      
https://github.com/Dolibarr/dolibarr/commit/05e08b3596f5d57be85116c8b48216a913ea029b
  Author: Laurent Destailleur <address@hidden>
  Date:   2020-02-06 (Thu, 06 Feb 2020)

  Changed paths:
    M htdocs/core/class/CMailFile.class.php
    M htdocs/core/lib/functions.lib.php
    M test/phpunit/FunctionsLibTest.php

  Log Message:
  -----------
  FIX Filenames must not contains non ascii char or we will get non ascii
char into the SMTP header.
FIX Do not encode subject if it is full ascii (not required)