minor correction

ui/dlg_main.py

@@ -122,7 +122,7 @@ class DlgMain(QtWidgets.QDialog):
                 
                 item = QTreeWidgetItem()
                 
-                item.setText(1, "{} > {}: {}".format(err["layername"], err["field"], err["message"]))
+                item.setText(1, "{} {} : {}".format(err["layername"], err["field"], err["message"]))
                 
                 topitem.addChild(item)