add period to comment

Author: sarthyparty

internal/mode/static/state/graph/gateway_listener.go

@@ -24,7 +24,7 @@ type Listener struct {
 	// Routes holds the GRPC/HTTPRoutes attached to the Listener.
 	// Only valid routes are attached.
 	Routes map[RouteKey]*L7Route
-	// L4Routes holds the TLSRoutes attached to the Listener
+	// L4Routes holds the TLSRoutes attached to the Listener.
 	L4Routes map[L4RouteKey]*L4Route
 	// AllowedRouteLabelSelector is the label selector for this Listener's allowed routes, if defined.
 	AllowedRouteLabelSelector labels.Selector