[Bug 29658] ctrl-u should delete the contents of the password field

[Tollef Fog Heen]

Public bug reported:
https://launchpad.net/malone/bugs/29658

Affects: gnome-screensaver (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
A have a fairly long password, which I get wrong once in a while.
Pressing C-u in the password entry box in gnome-screensaver doesn't do
anything.  It should behave like gdm, xscreensaver and others do: clear
the box.