Cleaned up logarithm energy grid setup
Cleaned up logarithm energy grid setup

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