iplink: can: fix help text and man page

Controller Area Network (CAN) interfaces are physical network interfaces.
They can't be 'created' like software devices by 'ip link add type can'.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>

ip/iplink.c

@@ -86,8 +86,8 @@ void iplink_usage(void)
 	if (iplink_have_newlink()) {
 		fprintf(stderr, "\n");
 		fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | macvtap |\n");
-		fprintf(stderr, "          can | bridge | bond | ipoib | ip6tnl | ipip | sit |\n");
-		fprintf(stderr, "          vxlan | gre | gretap | ip6gre | ip6gretap | vti }\n");
+		fprintf(stderr, "          bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan |\n");
+		fprintf(stderr, "          gre | gretap | ip6gre | ip6gretap | vti }\n");
 	}
 	exit(-1);
 }

man/man8/ip-link.8.in

@@ -163,9 +163,6 @@ Link types:
 .B bond
 - Bonding device
 .sp
-.B can
-- Controller Area Network interface
-.sp
 .B dummy
 - Dummy network interface
 .sp
@@ -179,7 +176,7 @@ Link types:
 - Virtual interface base on link layer address (MAC)
 .sp
 .B vcan
-- Virtual Local CAN interface
+- Virtual Controller Area Network interface
 .sp
 .B veth
 - Virtual ethernet interface