Fixed hdf5.get_nbytes
Fixed hdf5.get_nbytes


Former-commit-id: b4293d8c8b2f096dc246b397943e477f5937a61f [formerly 813fc146091e4f780d69a2547f35722b93d6eb31]
Former-commit-id: 112f090ceb7603614a236e14b16bbe1a5664110d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine