Fix for tx_nG6_eid.php

I don't see any difference yet, but the master version of this file
return no result table, and this version does.

I might revert this commit if it is useless.

issue #151, for the new tag V3.2.5.3

ui/nG6/class.tx_nG6_eid.php

@@ -871,7 +871,7 @@ class tx_nG6_eid {
                 print json_encode(tx_nG6_db::get_purge_demand_list($purge_delay));
     	}  elseif ($type == 'refresh_purge_list') {
             $max_retention_date = trim(\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('max_retention_date'));
-    		$filter_space = trim(\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('filter_space') );
+    		$filter_space = trim(\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('filter_space'));
     		
     		$without_laboratories_id = trim(\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('without_lab'));
             $with_laboratories_id = trim(\TYPO3\CMS\Core\Utility\GeneralUtility::_GP('with_lab'));