farray.sh: _farr_array_get_meta(), farr_array_tryget_meta() and _farr_array_tryget_meta_nonfatal() now do not use arithmetic expansion to check for valid length values. Now this is left to _farr_make_index() which does a far better job checking for valid values.

syntax: regexp

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