cosmetic: resolve some linter complaints

router/peer_name_hash.go

@@ -2,6 +2,7 @@
 
 // Let peer names be sha256 hashes...of anything (as long as it's
 // unique).
+
 package router
 
 import (

router/peer_name_mac.go

@@ -14,6 +14,7 @@
 // Note that we do not mandate *what* MAC should be used as the peer
 // name. In particular it doesn't actually have to be the MAC of, say,
 // the network interface the peer is sniffing on.
+
 package router
 
 import (