minor #3405 Fix `fopen` mode (ntzm)
minor #3405 Fix `fopen` mode (ntzm)

This PR was merged into the 2.2 branch.

Discussion
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Fix `fopen` mode

From the [manual](http://php.net/manual/en/function.fopen.php):

> To use these flags, specify either 'b' or 't' as the last character of the mode parameter.

Commits
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4ad66e5b Fix `fopen` mode

GrahamCampbell/PHP-CS-Fixer,Slamdunk/PHP-CS-Fixer,kubawerlos/PHP-CS-Fixer,GrahamCampbell/PHP-CS-Fixer,keradus/PHP-CS-Fixer,SpacePossum/PHP-CS-Fixer,gharlan/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer,Slamdunk/PHP-CS-Fixer,keradus/PHP-CS-Fixer,gharlan/PHP-CS-Fixer,SpacePossum/PHP-CS-Fixer,kubawerlos/PHP-CS-Fixer