Fix help text for --no-checksum. (#10932)
Fix help text for --no-checksum. (#10932)


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