== sanity test 413k: QoS mkdir exclude prefixes ========== 10:01:38 (1787752898)
lmv.lustre-clilmv-ffff8d0ec8d71800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d0ec8d71800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d0ec8d71800.qos_exclude_prefixes=_temporary