examples: add ticker Stop function

examples/cgroup_skb/main.go

@@ -58,6 +58,7 @@ func main() {
 	// Read loop reporting the total amount of times the kernel
 	// function was entered, once per second.
 	ticker := time.NewTicker(1 * time.Second)
+	defer ticker.Stop()
 
 	for range ticker.C {
 		var value uint64

examples/kprobe/main.go

@@ -50,6 +50,7 @@ func main() {
 	// Read loop reporting the total amount of times the kernel
 	// function was entered, once per second.
 	ticker := time.NewTicker(1 * time.Second)
+	defer ticker.Stop()
 
 	log.Println("Waiting for events..")
 

examples/kprobe_percpu/main.go

@@ -50,6 +50,7 @@ func main() {
 	// Read loop reporting the total amount of times the kernel
 	// function was entered, once per second.
 	ticker := time.NewTicker(1 * time.Second)
+	defer ticker.Stop()
 
 	log.Println("Waiting for events..")
 

examples/kprobepin/main.go

@@ -68,6 +68,7 @@ func main() {
 	// Read loop reporting the total amount of times the kernel
 	// function was entered, once per second.
 	ticker := time.NewTicker(1 * time.Second)
+	defer ticker.Stop()
 
 	log.Println("Waiting for events..")
 

examples/tracepoint_in_c/main.go

@@ -48,6 +48,8 @@ func main() {
 	// Read loop reporting the total amount of times the kernel
 	// function was entered, once per second.
 	ticker := time.NewTicker(1 * time.Second)
+	defer ticker.Stop()
+
 	log.Println("Waiting for events..")
 	for range ticker.C {
 		var value uint64