== sanity test 413k: QoS mkdir exclude prefixes ========== 22:47:05 (1761965225)
lmv.lustre-clilmv-ffff8dbf70c8c800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8dbf70c8c800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8dbf70c8c800.qos_exclude_prefixes=_temporary