Fix bug in install permission setting.
Fix bug in install permission setting.

lgarren/spack,matthiasdiener/spack,EmreAtes/spack,tmerrick1/spack,TheTimmy/spack,tmerrick1/spack,LLNL/spack,mfherbst/spack,skosukhin/spack,EmreAtes/spack,krafczyk/spack,iulian787/spack,iulian787/spack,krafczyk/spack,skosukhin/spack,TheTimmy/spack,matthiasdiener/spack,LLNL/spack,matthiasdiener/spack,EmreAtes/spack,lgarren/spack,mfherbst/spack,krafczyk/spack,LLNL/spack,lgarren/spack,skosukhin/spack,TheTimmy/spack,LLNL/spack,EmreAtes/spack,matthiasdiener/spack,lgarren/spack,iulian787/spack,lgarren/spack,iulian787/spack,matthiasdiener/spack,krafczyk/spack,tmerrick1/spack,krafczyk/spack,mfherbst/spack,TheTimmy/spack,mfherbst/spack,iulian787/spack,skosukhin/spack,tmerrick1/spack,mfherbst/spack,EmreAtes/spack,tmerrick1/spack,skosukhin/spack,TheTimmy/spack,LLNL/spack