fix phpmyadmin PHP_INI_SCAN_DIR bug

PHPMyAdmin runs on PHP 5.3, even if it's attached to PHP 5.4 or Zend Server.

Bug 1086220 - https://bugzilla.redhat.com/show_bug.cgi?id=1086220
Merge pull request #5258 from VojtechVitek/bug_1086220

Merged by openshift-bot