old_contents: ##############################################################################
  # Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
  # Produced at the Lawrence Livermore National Laboratory.
  #
  # This file is part of Spack.
  # Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
  # LLNL-CODE-647188
  #
  # For details, see https://github.com/llnl/spack
  # Please also see the LICENSE file for our notice and the LGPL.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU Lesser General Public License (as
  # published by the Free Software Foundation) version 2.1, February 1999.
  #
  # This program is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
  # conditions of the GNU Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  ##############################################################################
  from spack import *
  
  
  class RPackrat(Package):
      """Manage the R packages your project depends on in an isolated, portable,
      and reproducible way."""
  
      homepage = 'https://github.com/rstudio/packrat/'
      url      = "https://cran.r-project.org/src/contrib/packrat_0.4.7-1.tar.gz"
      list_url = 'https://cran.r-project.org/src/contrib/Archive/packrat'
  
      version('0.4.7-1', '80c2413269b292ade163a70ba5053e84')
  
      extends('R')
  
      def install(self, spec, prefix):
          R('CMD', 'INSTALL', '--library={0}'.format(self.module.r_lib_dir),
            self.stage.source_path)
  
new_contents: ##############################################################################
  # Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
  # Produced at the Lawrence Livermore National Laboratory.
  #
  # This file is part of Spack.
  # Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
  # LLNL-CODE-647188
  #
  # For details, see https://github.com/llnl/spack
  # Please also see the LICENSE file for our notice and the LGPL.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU Lesser General Public License (as
  # published by the Free Software Foundation) version 2.1, February 1999.
  #
  # This program is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
  # conditions of the GNU Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  ##############################################################################
  from spack import *
  
  
  class RPackrat(Package):
      """Manage the R packages your project depends on in an isolated, portable,
      and reproducible way."""
  
      homepage = "https://github.com/rstudio/packrat/"
      url      = "https://cran.r-project.org/src/contrib/packrat_0.4.7-1.tar.gz"
      list_url = "https://cran.r-project.org/src/contrib/Archive/packrat"
  
      version('0.4.7-1', '80c2413269b292ade163a70ba5053e84')
  
      extends('R')
  
      def install(self, spec, prefix):
          R('CMD', 'INSTALL', '--library={0}'.format(self.module.r_lib_dir),
            self.stage.source_path)
  
subject: Make quotations in variables consistent.