common.subr: _get_mounts_at_directory() and _get_zfs_dataset_for_mountpoint() now also work for path and/or datasets with spaces in their names/values. For this to work textproc/jq must be installed.

syntax: regexp

^work/
^docs/_build/
^docs/_venv.*/
^_venv.*/
^tests/fbhyve/bootvars.fd