Commits
Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop) * commit '15a1bce9a26b15313029410e23be6d706ad0c207': Replaced my_isnan with C99 isnan in h5diff.
Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop) * commit '15a1bce9a26b15313029410e23be6d706ad0c207': Replaced my_isnan with C99 isnan in h5diff.