iproute2: Fix usage and man page for 'ip link'

Add bridge as a supported type with 'ip link' in usage and all the missing
types in 'ip' man page. Also fixed some typos.
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>

ip/iplink.c

@@ -43,7 +43,7 @@ static int iplink_have_newlink(void);
 void iplink_usage(void)
 {
 	if (iplink_have_newlink()) {
-		fprintf(stderr, "Usage: ip link add link DEV [ name ] NAME\n");
+		fprintf(stderr, "Usage: ip link add [link DEV] [ name ] NAME\n");
 		fprintf(stderr, "                   [ txqueuelen PACKETS ]\n");
 		fprintf(stderr, "                   [ address LLADDR ]\n");
 		fprintf(stderr, "                   [ broadcast LLADDR ]\n");
@@ -78,7 +78,7 @@ void iplink_usage(void)
 
 	if (iplink_have_newlink()) {
 		fprintf(stderr, "\n");
-		fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | can }\n");
+		fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | can | bridge }\n");
 	}
 	exit(-1);
 }

man/man8/ip.8

@@ -47,7 +47,7 @@ ip \- show / manipulate routing, devices, policy routing and tunnels
 
 .ti -8
 .IR TYPE " := [ "
-.BR vlan " | " maclan " | " can " ]"
+.BR vlan " | " veth " | " vcan " | " dummy " | " ifb " | " macvlan " | " can " | " bridge ]"
 
 .ti -8
 .BI "ip link delete " DEVICE
@@ -989,13 +989,28 @@ Link types:
 
 .in +8
 .B vlan
-- 802.1q tagged virrtual LAN interface
+- 802.1q tagged virtual LAN interface
+.sp
+.B veth
+- Virtual ethernet interface
+.sp
+.B vcan
+- Virtual Local CAN interface
+.sp
+.B dummy
+- Dummy network interface
+.sp
+.B ifb
+- Intermediate Functional Block device
 .sp
 .B macvlan
 - virtual interface base on link layer address (MAC)
 .sp
 .B can
 - Controller Area Network interface
+.sp
+.B bridge
+- Ethernet Bridge device
 .in -8
 
 .SS ip link delete - delete virtual link