hdf5

Merge pull request #2379 in HDFFV/hdf5 from ~BRTNFLD/hdf5_msb:develop to develop

* commit 'def3f1a12e7c2ec165f40b9839f6bfe3da59807b':
  Corrected INTERFACE INTENT(IN) to INTENT(OUT) for buf_size inh5fget_file_image_f.