Fixed output in surface_crossings subroutine.
Fixed output in surface_crossings subroutine.

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