== sanity test 413k: QoS mkdir exclude prefixes ========== 19:32:44 (1768264364)
lmv.lustre-clilmv-ffff99fe82a2d800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99fe82a2d800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99fe82a2d800.qos_exclude_prefixes=_temporary