Update facture.php

$soc already filled upper if $socid filled
Yeah we all know that. Because moving all the code to the new standard would make some problems, we are more strict in new additions/modifications than in old code.

CodeSniffer file descriptor is not OK as it inherits some PEAR rules that PSR-2 doesn't follow. https://github.com/Dolibarr/dolibarr/pull/1842 So sometimes Travis says OK and sometimes Not OK but that doesn't mean that Travis is correct. At least now.

PSR-2 it's not difficult to use, you just have to remind some rules.

You can bring the discussion to the ML if you want to.