== sanity test 413k: QoS mkdir exclude prefixes ========== 10:46:31 (1753368391)
lmv.lustre-clilmv-ffff916249573800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff916249573800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff916249573800.qos_exclude_prefixes=_temporary