Set default size on dialog of CSV windows

issue8016

tryton/gui/window/win_csv.py

@@ -42,6 +42,7 @@ class WinCSV(NoModal):
         Main().add_window(self.dialog)
         self.dialog.set_position(gtk.WIN_POS_CENTER_ON_PARENT)
         self.dialog.set_icon(TRYTON_ICON)
+        self.dialog.set_default_size(*self.default_size())
         self.dialog.connect('response', self.response)
 
         dialog_vbox = gtk.VBox()