== sanity test 413k: QoS mkdir exclude prefixes ========== 04:19:29 (1785226769)
lmv.lustre-clilmv-ffff99d68b32f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99d68b32f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99d68b32f800.qos_exclude_prefixes=_temporary