Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop)
* commit 'cee9624b0febcb60a7b2699262104e9eaf20313d':
output_filter.sh: Comment added to address HDFFV-8270. The sample ontput in the file's comments are not up-to-date with the scripts in the file that remove output unique to certain systems when running test scripts. This output doesn't match expected output files for the tests, causing them to fail. Ther output_filter.sh file removes such output. Currently we don't have access to these systems to update the comments.
Correct double sourcedir name on copied datafiles.
