fixed failure return code from CTest script
fixed failure return code from CTest script

bhermanmit/openmc,mjlong/openmc,smharper/openmc,samuelshaner/openmc,kellyrowland/openmc,samuelshaner/openmc,amandalund/openmc,wbinventor/openmc,johnnyliu27/openmc,amandalund/openmc,lilulu/openmc,liangjg/openmc,wbinventor/openmc,mit-crpg/openmc,paulromano/openmc,liangjg/openmc,amandalund/openmc,mit-crpg/openmc,shikhar413/openmc,samuelshaner/openmc,wbinventor/openmc,smharper/openmc,johnnyliu27/openmc,johnnyliu27/openmc,samuelshaner/openmc,bhermanmit/openmc,paulromano/openmc,lilulu/openmc,shikhar413/openmc,smharper/openmc,walshjon/openmc,kellyrowland/openmc,paulromano/openmc,mit-crpg/openmc,lilulu/openmc,liangjg/openmc,walshjon/openmc,amandalund/openmc,walshjon/openmc,liangjg/openmc,walshjon/openmc,mjlong/openmc,mit-crpg/openmc,smharper/openmc,wbinventor/openmc,paulromano/openmc,johnnyliu27/openmc,shikhar413/openmc,shikhar413/openmc