fixed comment in header file
fixed comment in header file

kellyrowland/openmc,paulromano/openmc,walshjon/openmc,lilulu/openmc,samuelshaner/openmc,wbinventor/openmc,shenqicang/openmc,paulromano/openmc,samuelshaner/openmc,sxds/opemmc,amandalund/openmc,mjlong/openmc,liangjg/openmc,mit-crpg/openmc,amandalund/openmc,mjlong/openmc,bhermanmit/openmc,shikhar413/openmc,kellyrowland/openmc,lilulu/openmc,walshjon/openmc,johnnyliu27/openmc,wbinventor/openmc,paulromano/openmc,liangjg/openmc,mit-crpg/openmc,shenqicang/openmc,johnnyliu27/openmc,samuelshaner/openmc,shikhar413/openmc,bhermanmit/cdash,keadyk/openmc_mg_prepush,keadyk/openmc_mg_prepush,smharper/openmc,nhorelik/openmc,walshjon/openmc,johnnyliu27/openmc,samuelshaner/openmc,bhermanmit/openmc,smharper/openmc,nhorelik/openmc,paulromano/openmc,lilulu/openmc,shikhar413/openmc,johnnyliu27/openmc,wbinventor/openmc,sxds/opemmc,smharper/openmc,amandalund/openmc,keadyk/openmc_mg_prepush,shikhar413/openmc,liangjg/openmc,wbinventor/openmc,liangjg/openmc,amandalund/openmc,smharper/openmc,mit-crpg/openmc,walshjon/openmc,mit-crpg/openmc