[Secure-testing-team] Bug#722335: sudo init script should set date to epoch, not 1985-01-01

[Marc Deslauriers]

Package: sudo
Version: 1.8.6p3-0ubuntu3
Severity: normal
Tags: security

Sudo treats filestamps set to epoch as invalid, so the init script should set the contents of /var/lib/sudo to epoch, and not 19850101.

ie:
find /var/lib/sudo -exec touch -d @0 '{}' \;

instead of:
find /var/lib/sudo -exec touch -t 198501010000 '{}' \;

See downstream bug report:
https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/1223297