Commits
Merge pull request #1677 in HDFFV/hdf5 from ~DEROBINS/hdf5_der:is_accessible_test_love to develop * commit 'e66bf948a7acba0ddc76239f6d02f17c8b10eb0f': Fix for split VFD and file cleanup when testing H5Fis_hdf5 and H5Fis_accessible in tfile.c. Improvements to the H5Fis_accessible() and H5Fis_hdf5() tests in tfile.c. * General code tidying. * Expanded tests to work with multi-file VFDs.