Commits
Merging in latest from upstream (HDFFV/hdf5:refs/heads/hdf5_1_12) * commit '91d29817413e00f1dcd006d13790df6ce7aeb5c0': Update version to 1.12.1-snap0 for hdf5_1_12 branch.
Merging in latest from upstream (HDFFV/hdf5:refs/heads/hdf5_1_12) * commit '91d29817413e00f1dcd006d13790df6ce7aeb5c0': Update version to 1.12.1-snap0 for hdf5_1_12 branch.