fix path in file changed detected message (kubernetes#11271)

* fix path in file changed detected message

Signed-off-by: Tom Hayward <[email protected]>

* fix typo in log message

* explain code per review comments

---------

Signed-off-by: Tom Hayward <[email protected]>

Author: kd7lxl

internal/ingress/controller/nginx.go

@@ -204,8 +204,11 @@ func NewNGINXController(config *Configuration, mc metric.Collector) *NGINXContro
 	}
 
 	for _, f := range filesToWatch {
+		// This redeclaration is necessary for the closure to get the correct value for the iteration in go versions <1.22
+		// See https://go.dev/blog/loopvar-preview
+		f := f
 		_, err = file.NewFileWatcher(f, func() {
-			klog.InfoS("File changed detected. Reloading NGINX", "path", f)
+			klog.InfoS("File change detected. Reloading NGINX", "path", f)
 			n.syncQueue.EnqueueTask(task.GetDummyObject("file-change"))
 		})
 		if err != nil {