== sanity test 413k: QoS mkdir exclude prefixes ========== 01:01:57 (1773205317)
lmv.lustre-clilmv-ffff9d57883b0000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d57883b0000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d57883b0000.qos_exclude_prefixes=_temporary