== sanity test 413k: QoS mkdir exclude prefixes ========== 12:30:38 (1787848238)
lmv.lustre-clilmv-ffff90a74bbc2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90a74bbc2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90a74bbc2000.qos_exclude_prefixes=_temporary