Dustin C. Hatch da2d73b676 roles/dhcpcd: Disable device management module
Today I realized that `dhcpcd` has been logging several hundred thousand
of these messages every second:

    libudev: received NULL device

This was causing both `dhcpcd` and `systemd-journald` to consume 100%
CPU.

I am not entirely sure what a "device management" module is in the
context of `dhcpcd`, but it does not seem to be required. Setting the
`nodev` option in `dhcpcd.conf` suppresses the messages, and seems to
have no effect on the operation of the daemon.
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Description
Ansible configuration policy for the private network/home lab of Dustin C. Hatch
http://dustin.hatch.name/
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