robbyrussell/oh-my-zsh — pull request #707 by gmcmillan (2011-11-15 18:56:45+00:00)
Title: Allow user to disable update prompt

I added an option, $DISABLE_UPDATE_PROMPT, which is checked for in "check_for_upgrade.sh" that will skip asking the user to confirm the update and just go ahead and do it if it's time to check for updates again.