fix XSS in editor/extensions/fileopen.php reported by Lukas Reschke <lukas@statuscode.ch>
fix XSS in editor/extensions/fileopen.php
reported by Lukas Reschke <lukas@statuscode.ch>


git-svn-id: 829f041edcabe93b7893c4ec42f5993156d1fcf0@2080 eee81c28-f429-11dd-99c0-75d572ba1ddd

kenwenzel/svg-edit,kenwenzel/svg-edit,kenwenzel/svg-edit