wxGUI: update attributes - report error

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@48942 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/dbm_dialogs.py

@@ -296,6 +296,7 @@ class DisplayAttributesDialog(wx.Dialog):
                 sql = sql.encode(enc)
             
             gcmd.RunCommand('db.execute',
+                            parent = self,
                             quiet = True,
                             input = '-',
                             stdin = sql)