updatebase passes invalid flags to apt-get update

[Trevor Adams]

1) Precise
2) 3.4.8ubuntu2
3) updatebase should run apt-get update with proper flags
4) updatebase runs apt-get as follows:

export aptopt='-y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold"'
$ROOTCMD apt-get $aptopt update

Which result in invalid Dpkg::Options as they are double quoted, removing the quotes solves the problem. As a result of this apt-get update only downloads the system architecture packages, instead of both the system and the foreign architectures.

This is related to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1075260