Simplify check per @drewejohnson suggestion
Simplify check per @drewejohnson suggestion

liangjg/openmc,liangjg/openmc,smharper/openmc,amandalund/openmc,amandalund/openmc,shikhar413/openmc,liangjg/openmc,amandalund/openmc,shikhar413/openmc,smharper/openmc,paulromano/openmc,liangjg/openmc,mit-crpg/openmc,walshjon/openmc,walshjon/openmc,paulromano/openmc,walshjon/openmc,mit-crpg/openmc,mit-crpg/openmc,shikhar413/openmc,walshjon/openmc,paulromano/openmc,shikhar413/openmc,amandalund/openmc,mit-crpg/openmc,smharper/openmc,smharper/openmc,paulromano/openmc