== sanity test 413k: QoS mkdir exclude prefixes ========== 18:04:20 (1786572260)
lmv.lustre-clilmv-ffff991fc7e9c800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff991fc7e9c800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff991fc7e9c800.qos_exclude_prefixes=_temporary