== sanity test 413k: QoS mkdir exclude prefixes ========== 17:54:31 (1787867671)
lmv.lustre-clilmv-ffff8f6b1fb23000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f6b1fb23000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f6b1fb23000.qos_exclude_prefixes=_temporary