autotest/virt-test — pull request #241 by ldoktor (2013-03-18 11:53:39+00:00)
Title: run: Avoid machine_type setting when using custom config

When custom config was used and default_guest_os was None,
the _process_machine_type added a DEFAULT_MACHINE_TYPE filter,
which might fail on configs without 'i440fx' variant.

Signed-off-by: Lukáš Doktor