Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop)
* commit '55666ace551369b3d72430c090ab9f1571e1be75':
Combined macro lines as Dana commented Platforms tested: Linux/64 (jelly) (very minor)
Fix evaluation of __has_attribute(no_sanitize_address) on older GCC versions
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)
