diffreport: Ignore the Arguments table
diffreport: Ignore the Arguments table

Firepony now outputs an extra line in the Arguments table. Ignore the Arguments
table when comparing outputs.

broadinstitute/firepony,NVlabs/firepony,NVlabs/firepony,NVlabs/firepony,broadinstitute/firepony,broadinstitute/firepony,NVlabs/firepony,broadinstitute/firepony