These strings are not located in update-manager.
You can find them in the ubuntu-release-upgrader package
[1] https://translations.launchpad.net/ubuntu/quantal/+source/ubuntu-release-upgrader/+pots/ubuntu-release-upgrader/it/26/+translate [2] https://translations.launchpad.net/ubuntu/quantal/+source/ubuntu-release-upgrader/+pots/ubuntu-release-upgrader/it/64/+translate
These strings are not located in update-manager.
You can find them in the ubuntu- release- upgrader package
[1] https:/ /translations. launchpad. net/ubuntu/ quantal/ +source/ ubuntu- release- upgrader/ +pots/ubuntu- release- upgrader/ it/26/+ translate /translations. launchpad. net/ubuntu/ quantal/ +source/ ubuntu- release- upgrader/ +pots/ubuntu- release- upgrader/ it/64/+ translate
[2] https:/