== sanity test 413k: QoS mkdir exclude prefixes ========== 09:28:08 (1787837288)
lmv.lustre-clilmv-ffff951ce664b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff951ce664b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff951ce664b000.qos_exclude_prefixes=_temporary