Ask user to delete downloaded tgz files.
Ask user to delete downloaded tgz files.

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