hdf5

Merge pull request #505 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:develop to develop

* commit 'c8a5520d3aa3a526460c81507f2f985dc534b14f':
  Call to H5Dopen has H5dopen2 arguments at line 12704 of test/dsets.c - changed to H5Dopen2 to fix failure with --with-default-api-version=v16 configure option.