Add filter hook to update_right_now_message

[geraint]

Hi I'd like a filter to be added to the core function update_right_now_message()

Problem: Currently I'm managing/maintaining several sites via svn, which can be broken by users hitting the update now button and using the automatic update.

Both, the top update nag and the footer nag are added via filter/action so its easy to overload the message in a plug-in, however the nag in the right-now widget is included directly.

Solution: By adding a filter to the update_right_now_message()
function the rightnow message will be accessible to plugins site administrators without having to hack the core.

[geraint]

simple patch that adds a filter call

[alexdunae]

You might want to look into the ​Disable WordPress Core Update plugin.

[nacin]

You can simply remove the capability update_core. Think that one might be new in 3.0.