The brief format does not honer the master and type filters:

$ ip link show master vrf-mgmt
7: dummy0: <BROADCAST,NOARP,SLAVE> mtu 1500 qdisc noop master vrf-mgmt state DOWN mode DEFAULT group default qlen 1000
    link/ether 66:39:cc:2b:e9:bd brd ff:ff:ff:ff:ff:ff

$ ip -br link show master vrf-mgmt
lo               UNKNOWN        00:00:00:00:00:00 <LOOPBACK,UP,LOWER_UP>
eth0             UP             08:00:27:de:14:c8 <BROADCAST,MULTICAST,UP,LOWER_UP>
eth1             UP             08:00:27:87:02:f1 <BROADCAST,MULTICAST,UP,LOWER_UP>
eth2             UP             08:00:27:61:1e:fd <BROADCAST,MULTICAST,UP,LOWER_UP>
vrf-blue         UNKNOWN        a6:3f:09:34:7e:74 <NOARP,MASTER,UP,LOWER_UP>
vrf-red          DOWN           fe:a2:2d:e1:bc:ac <NOARP,MASTER>
dummy0           DOWN           66:39:cc:2b:e9:bd <BROADCAST,NOARP,SLAVE>
dummy1           DOWN           4a:4f:13:91:64:b1 <BROADCAST,NOARP,SLAVE>
dummy2           DOWN           b2:4f:b6:cd:bd:a6 <BROADCAST,NOARP>
dummy3           DOWN           1e:06:3d:40:b8:c2 <BROADCAST,NOARP,SLAVE>
vrf-mgmt         DOWN           ce:b2:74:41:21:df <NOARP,MASTER>

With this patch the expected output is shown:

$ ip -br link show master vrf-mgmt
dummy0           DOWN           66:39:cc:2b:e9:bd <BROADCAST,NOARP,SLAVE>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>