* commit '4a3998ac308c2bf24201e470c0b23f7f83f063e1': Correct indentation in h5diff/Makefile.am. Add "-rpath /nowhere" to *_la_LDFLAGS for plugin test libraries. This allows them to be successfully linked but not installed. The change was added for the HDF5 1.8.20 release, but is also needed for all other HDF5 branches.