Apply suggestions from code review

Co-authored-by: Lucas Servén Marín <lserven@gmail.com>

cmd/kg/main.go

@@ -92,7 +92,7 @@ func Main() error {
 	local := flag.Bool("local", true, "Should Kilo manage routes within a location?")
 	logLevel := flag.String("log-level", logLevelInfo, fmt.Sprintf("Log level to use. Possible values: %s", availableLogLevels))
 	master := flag.String("master", "", "The address of the Kubernetes API server (overrides any value in kubeconfig).")
-	topologyLabel := flag.String("topology-label", k8s.RegionLabelKey, "Kubernetes node label used to group logical nodes.")
+	topologyLabel := flag.String("topology-label", k8s.RegionLabelKey, "Kubernetes node label used to group nodes into logical locations.")
 	var port uint
 	flag.UintVar(&port, "port", mesh.DefaultKiloPort, "The port over which WireGuard peers should communicate.")
 	subnet := flag.String("subnet", mesh.DefaultKiloSubnet.String(), "CIDR from which to allocate addresses for WireGuard interfaces.")

cmd/kgctl/main.go

@@ -111,7 +111,7 @@ func main() {
 	cmd.PersistentFlags().StringVar(&granularity, "mesh-granularity", string(mesh.LogicalGranularity), fmt.Sprintf("The granularity of the network mesh to create. Possible values: %s", availableGranularities))
 	cmd.PersistentFlags().StringVar(&kubeconfig, "kubeconfig", os.Getenv("KUBECONFIG"), "Path to kubeconfig.")
 	cmd.PersistentFlags().Uint32Var(&opts.port, "port", mesh.DefaultKiloPort, "The WireGuard port over which the nodes communicate.")
-	cmd.PersistentFlags().StringVar(&topologyLabel, "topology-label", k8s.RegionLabelKey, "Kubernetes node label used to group logical nodes.")
+	cmd.PersistentFlags().StringVar(&topologyLabel, "topology-label", k8s.RegionLabelKey, "Kubernetes node label used to group nodes into logical locations.")
 
 	for _, subCmd := range []*cobra.Command{
 		graph(),

pkg/k8s/backend.go

@@ -59,7 +59,7 @@ const (
 	locationAnnotationKey        = "kilo.squat.ai/location"
 	persistentKeepaliveKey       = "kilo.squat.ai/persistent-keepalive"
 	wireGuardIPAnnotationKey     = "kilo.squat.ai/wireguard-ip"
-	// RegionLabelKey is the key for region label.
+	// RegionLabelKey is the key for the well-known Kubernetes topology region label.
 	RegionLabelKey  = "topology.kubernetes.io/region"
 	jsonPatchSlash  = "~1"
 	jsonRemovePatch = `{"op": "remove", "path": "%s"}`