hdf5

Merge pull request #394 in HDFFV/hdf5 from ~DEROBINS/hdf5_der:develop to develop

* commit '9876155d3fdb073dd3769f18665c86d04cda4806':
  Updated the H5L.c error message after additional thought. Fix for HDFFV-10141.
  Updated an error message in H5L.c to be more helpful. Fixes HDFFV-10141.