Move h5_test_init() calls after MPI_Init #4988
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Parallel HDF5 attempts to create a destructor attribute on the MPI Communicator object
MPI_COMM_SELFwhen the library initializes. This is to ensure that proper shutdown of thelibrary occurs during calls to
MPI_Finalize()so that the library doesn't unintentionally makeuse of MPI objects after MPI has been finalized. If MPI has not been initialized with a call to
MPI_Init()before HDF5 is initialized, the library will be unable to register its destructor attributeon
MPI_COMM_SELFand will be unable to properly shut down the library in some cases.