Update output string, kwargs, docstring
Update output string, kwargs, docstring

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