verify.py: os.path.exists exception handling (#13656)
verify.py: os.path.exists exception handling (#13656)


LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,iulian787/spack,LLNL/spack,iulian787/spack,iulian787/spack