== sanity test 413k: QoS mkdir exclude prefixes ========== 23:43:37 (1786765417)
lmv.lustre-clilmv-ffff96fce7693800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff96fce7693800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff96fce7693800.qos_exclude_prefixes=_temporary