If I use the example usage command for notifications from the Zenity documentation site:
zenity --notification\
--window-icon="info" \
--text="There are system updates necessary!"
I get a notification with a button at the bottom saying "Do Default Action". Clicking the button removes the notification.
How do I change that default and make it display something else? Or remove the button entirely? And how is the default action to be run? man zenity, zenity --help-notification, and the website above seem to be entirely silent on the matter.
I'm on Xubuntu 14.04, using Zenity 3.8.0.