astyle: add 3.1 (#8137)
astyle: add 3.1 (#8137)


mfherbst/spack,matthiasdiener/spack,iulian787/spack,tmerrick1/spack,iulian787/spack,mfherbst/spack,krafczyk/spack,iulian787/spack,LLNL/spack,iulian787/spack,LLNL/spack,mfherbst/spack,krafczyk/spack,matthiasdiener/spack,mfherbst/spack,tmerrick1/spack,matthiasdiener/spack,krafczyk/spack,LLNL/spack,tmerrick1/spack,tmerrick1/spack,iulian787/spack,LLNL/spack,mfherbst/spack,matthiasdiener/spack,matthiasdiener/spack,krafczyk/spack,tmerrick1/spack,krafczyk/spack,LLNL/spack