multi: fix make lint

Fixes new lint errors caught by the latest version.

config.go

@@ -254,7 +254,7 @@ var (
 // See LoadConfig for further details regarding the configuration
 // loading+parsing process.
 //
-// nolint:lll
+//nolint:lll
 type Config struct {
 	ShowVersion bool `short:"V" long:"version" description:"Display version information and exit"`
 
@@ -465,7 +465,7 @@ type Config struct {
 
 // DefaultConfig returns all default values for the Config struct.
 //
-// nolint:lll
+//nolint:lll
 func DefaultConfig() Config {
 	return Config{
 		LndDir:            DefaultLndDir,