[Pkg-utopia-maintainers] Bug#934092: Consider setting internal dhcp client as default

[thomasw at fastmail.cn]

package: network-manager

Network manager now offers its own internal dhcp client. I have been testing this with dhcp=internal in its configuration file. Setting this by default would offer us some advantages since this client is faster than dhclient. I have been using it on my laptops on all sorts of networks including complicated ones at university and had no trouble. Since we are at the beginning of a new cycle, there is a long time before freeze. We could see if anyone reports problems and change it back if they do.