Bug#974181: python3-sasview: tests fail with h5py 3.1

[Drew Parsons]

Package: sasview
Version: 5.0.3-1
Followup-For: Bug #974181

This upstream patch might be relevant, might fix:
https://github.com/SasView/sasview/pull/1683 


More drastic upstream changes in development at
https://github.com/SasView/sasview/pull/1559