hdf5_chunking_query_bmr

Merge pull request #1134 in HDFFV/hdf5 from ~BMRIBLER/hdf5_bmr_cpp4:develop to develop

Fixed HDFFV-10481 and HDFFV-10477

* commit '83ca39ba9a2d6852dd7754b533f7839e9d2a0107':
  Combined macro lines as Dana commented Platforms tested:     Linux/64 (jelly) (very minor)
  Fixed division-by-zero issues Description:     Fixed HDFFV-10481 and HDFFV-10477, division by 0.     Fixed another occurrence beside what were reported.     Also, changed a local variable to avoid an unnecessary cast. Platforms tested:     Linux/64 (jelly)     Linux/32 (jam)     Darwin (osx1010test)