== sanity test 413k: QoS mkdir exclude prefixes ========== 02:21:08 (1788675668)
lmv.lustre-clilmv-ffff96fb887f8000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff96fb887f8000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff96fb887f8000.qos_exclude_prefixes=_temporary