Commits
Merging in latest from upstream (HDFFV/hdf5:refs/heads/hdf5_1_12) * commit '4bd50505cf4e9ab6a47993a114f149a175178f65': Update MANIFEST. Fix typos. Add HISTORY-1_10_0-1_12_0.txt. Update RELEASE.txt and add HISTORY-1_10_0-1_12_0.txt file. Set version to 1.12.0-alpha0 for snapshot release.