hdf5_ep

Merge pull request #327 in HDFFV/hdf5 from ~VCHOI/my_hdf5_fork:hdf5_1_8 to hdf5_1_8

* commit 'd5fea5b80a2ccc21fb4f187d0efeda80b9134156':
  Bring fix for HDFFV-9697 from develop branch. Populate the fix for HDFFV-9697: Fix for unknown message from develop branch. Tested on ostrich, platypus, kite, quail, osx1010test, emu, mayll, moohan, kituo.