Update machine_test.go

[AmitSahastra]

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[spectro-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: AmitSahastra
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[spectro-prow]

@AmitSahastra: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
cluster-api-provider-maas_build	58de6e8	link	/test cluster-api-provider-maas_build

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