hdf5

Merge pull request #2308 in HDFFV/hdf5 from ~BYRN/hdf5_merge_adb:develop to develop

* commit '3b804074bd358b4a1f5b8ace30f53c4a5b250bf8':
  Add another warning variation
  Correct ignore warnings
  Only use sanitizer with Clang
  Remove cmake macros from valgrind tests