Fix UTF-8 handling
Fix UTF-8 handling

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