Description:
------------
The function localeconv() returns an array and one of its keys is 
'int_curr_symbol' what I expected to return the international currency symbol 
(e.g. USD (US dollar), BRL (Brazilian real)).

I develop in a Windows environment and deploy to a Ubuntu machine and that's why 
I'm not sure if this is a bug of PHP, bad implementation of standards by Windows 
or Ubuntu or an undocumented difference.

The returned int_curr_symbol from the Ubuntu machine contains an extra space at 
the end but the one from Windows doesn't. Researching online all I found were old 
specification documents. Correct me if I am wrong but from what I understood from 
some documents adding a space to the int_curr_symbol is deprecated.

Test script:
---------------
<?php
  setlocale(LC_MONETARY, 'en_US');
  $x = localeconv();
  echo $x['int_curr_symbol'];
?>

Expected result:
----------------
$x['int_curr_symbol'] should output 'USD'.

Actual result:
--------------
$x['int_curr_symbol'] should outputs 'USD '.