updated DBG in acl query features

SE/se-lib/AclQueryFeatures.php

@@ -556,7 +556,7 @@ class AclQueryFeatures {
 		//		 $this->_selectLocalFields['rawSelect'] = $rawSelect;
 		//	 }
 		// }
-		if (!empty($this->_params['cols'])) DBG::log($this->_params['cols'], 'array', '$this->_params[cols]');
+		if (!empty($this->_params['cols'])) DBG::log($this->_params['cols'], 'array', "\$this->_params[cols] (" . ($this->_acl ? $this->_acl->getNamespace() : 'unknown') . ")");
 
 		if ($todoFetchAllCols) {
 			// $this->_selectLocalFields[] = '*'; // TODO: select all $this->from local fields