by using an escape character. For example, for a dataset "/dset"
containing attribute "speed(m/h)", use "h5dump -a "/dset/speed(\/h)"
to show the content of the attribute. See details at HDFFV-7523
If a link is specified on the command with the -d option, call the handle_links function on error from the H5Dopen command.
Updated test file results with error stack when link not found.
Tested: local linux and jam
