== sanity test 413k: QoS mkdir exclude prefixes ========== 09:10:49 (1787836249)
lmv.lustre-clilmv-ffff90c1d1dfb000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90c1d1dfb000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90c1d1dfb000.qos_exclude_prefixes=_temporary