hdf5

Merge pull request #1782 in HDFFV/hdf5 from ~DEROBINS/hdf5_der:warning_fixes to develop

* commit '1c4101c6a77dd9223483dd9e3f7bec0f9e92f435':
  Fixed various warnings in testhdf5 files.
  Warning fixes: * fix for static/const flipped in H5Dint.c * Removed missing done target in H5Rint.c * Fixed misleading indentation in h5format_convert.c