2553 mac address should be a dladm link property

@@ -2345,11 +2345,11 @@
  * Add a new unicast address to the MAC client.
  *
  * The MAC address can be specified either by value, or the MAC client
  * can specify that it wants to use the primary MAC address of the
  * underlying MAC. See the introductory comments at the beginning
- * of this file for more more information on primary MAC addresses.
+ * of this file for more information on primary MAC addresses.
  *
  * Note also the tuple (MAC address, VID) must be unique
  * for the MAC clients defined on top of the same underlying MAC
  * instance, unless the MAC_UNICAST_NODUPCHECK is specified.
  *