Description:
------------
We're testing ZF2 against PHP7 nightly. In the last couple days, we started noticing that our tests that use a magic.mime file started failing, with messages of the format "finfo_open(): Warning: Printf format `l' is not valid for type `lequad' in description `...'".

From what I can see, recent changes to ext/fileinfo/libmagic/ have removed support for the following printf sequences:

* l, ll, h, and hh (used as length modifiers)
* .0 (used to indicate zero-padding vs space padding)
* numeric precision

This is particularly problematic, as the lequad and bequad libmagic specifications require specific formats that require such modifiers, and without the above, there is no way to provide a valid magic.mime file to finfo_open(). Researching libmagic, I cannot find a magic.mime file that does NOT have these formats present.

Test script:
---------------
<?php
$magicData = file_get_contents('https://raw.githubusercontent.com/zendframework/zf2/2750340ad353cad9e80525d1c13efcda03e21027/tests/ZendTest/Validator/File/_files/magic.mime');
$magicFile = tempnam(sys_get_temp_dir(), 'mag');
file_put_contents($magicFile, $magicData);

finfo_open(FILEINFO_MIME_TYPE, $magicFile);

Actual result:
--------------
ErrorException: finfo_open(): Failed to load magic database at '...'.

Caused by
ErrorException: finfo_open(): Warning: Printf format `h' is not valid for type `leshort' in description `.%hd'

// and many, many more similar errors