multi: fix make lint

Fixes new lint errors caught by the latest version.

lncfg/btcd.go

@@ -2,7 +2,7 @@ package lncfg
 
 // Btcd holds the configuration options for the daemon's connection to btcd.
 //
-// nolint:lll
+//nolint:lll
 type Btcd struct {
 	Dir        string `long:"dir" description:"The base directory that contains the node's data, logs, configuration file, etc."`
 	RPCHost    string `long:"rpchost" description:"The daemon's rpc listening address. If a port is omitted, then the default port for the selected chain parameters will be used."`