more error msg (merge from devbr6)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@40672 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/goutput.py

@@ -448,7 +448,7 @@ class GMConsole(wx.SplitterWindow):
                                  'd.rhumbline'    : 'rhumb',
                                  'd.labels'       : 'labels'}[cmdlist[0]]
                 except KeyError:
-                    wx.MessageBox(message=_("Command '%s' not yet implemented.") % cmdlist[0])
+                    wx.MessageBox(message=_("Command '%s' not yet implemented in the GUI. Try adding it as a command layer instead.") % cmdlist[0])
                     return None
 
                 # add layer into layer tree